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| Acenocoumarol-d4 CAS No. N/A C19H11NO6D4 M.W. 357.36 A-011
 | | | Acetaminophen-d3 CAS No. 103-90-2 (non-d) C8H6D3NO2 M.W. 154.18 A-021
 |
| Acetaminophen Glucuronide Sodium Salt C14H16NO8.Na M.W. 326.29 22.99 A-0210
 | | | Acetaminophen (Paracetamol) CAS No. 103-90-2 C8H9NO2 M.W. 151.17 A-0211
 |
| Acetaminophen Impurity F (Paracetamol Impurity F) CAS No. 100-02-7 C6H5NO3 M.W. 139.11 A-0212
 | | | Acetaminophen Impurity J (Paracetamol Impurity J) CAS No. 539-03-7 C8H8ClNO M.W. 169.61 A-0213
 |
| Acetaminophen Impurity K (Paracetamol Impurity K) CAS No. 123-30-8 C6H7NO M.W. 109.13 A-0214
 | | | Paracetamol Impurity A CAS No. 614-80-2 C8H9NO2 M.W. 151.17 A-0215
 |
| Paracetamol Impurity B CAS No. 1693-37-4 C9H11NO2 M.W. 165.19 A-0216
 | | | Paracetamol Impurity C CAS No. 3964-54-3 C8H8ClNO2 M.W. 185.61 A-0217
 |
| Paracetamol Impurity E CAS No. 99-93-4 C8H8O2 M.W. 136.15 A-0218
 | | | Paracetamol Impurity G CAS No. 34523-34-7 C8H9NO2 M.W. 151.17 A-0219
 |
| 3-Hydroxyacetaminophen-d3 CAS No. 37519-14-5(non-d) C8H6D3NO3 M.W. 170.18 A-022
 | | | Paracetamol Impurity I CAS No. 118-93-4 C8H8O2 M.W. 136.15 A-0220
 |
| 3-Cysteinylacetaminophen Trifluoroacetic Acid Salt C11H14N2O4S . C2HF3O2 M.W. 270.31 114.02 A-0221
 | | | Acetaminophen sulphate potassium salt C8H8NO5S.K M.W. 269.32 A-023
 |
| Acetaminophen-d3 sulphate potassium salt C8H5D3NO5S.K M.W. 272.34 A-024
 | | | Acetaminophen mercapturate CAS No. 52372-86-8 C11H14N2O4S M.W. 270.31 A-025
 |
| Acetaminophen-d3 mercapturate CAS No. 52372-86-8 (non-d) C11H11D3N2O4S M.W. 273.33 A-026
 | | | Acetaminophen impurity (Paracetamol Impurity H) (N,O-Diacetyl-4-aminophenol) CAS No. 2623-33-8 C10H11NO3 M.W. 193.20 A-027
 |
| Acetaminophen-d3 glucuronide C14H14NO8D3 M.W. 330.1 A-028
 | | | Acetamidophen glucuronide-13C6 C14H17NO8 M.W. 332.34 A-029
 |
| Acetylsalicylic Acid-d3 (Aspirin-d3) CAS No. 50-78-2 (non-d) C9H5D3O4 M.W. 183.18 A-031
 | | | Acetylsalicylic Acid Impurity A (Aspirin Impurity A) (4-Hydroxybenzoic acid) CAS No. 99-96-7 C7H6O3 M.W. 138.12 A-032
 |
| Acetylsalicylic Acid Impurity C (Aspirin Impurity C) (Salicyclic acid) CAS No. 69-72-7 C7H6O3 M.W. 138.12 A-033
 | | | Acetylsalicylic Acid Impurity D (Aspirin Impurity D) (Acetysalicylsalicyclic acid) CAS No. 530-75-6 C16H12O6 M.W. 300.27 A-034
 |
| Acetylsalicylic Acid Impurity F (Aspirin Impurity F) (Acetysalicyclclic anhydride) CAS No. 1466-82-6 C18H14O7 M.W. 342.30 A-035
 | | | Acetylsalicylic Acid Acyl-D-Glucuronide (Aspirin Acyl-D-Glucuronide) CAS No. 24719-72-0 C15H16O10 M.W. 356.29 A-036
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| Acetylsalicylic Acid-d4 (Aspirin-d4) C9H4O4D4 M.W. 184.19 A-037
 | | | Acetylsalicylic Acid Impurity B (Aspirin Impurity B) CAS No. 636-46-4 C8H6O5 M.W. 182.13 A-038
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| Acetylsalicylic Acid Impurity E (Aspirin Impurity E) CAS No. 552-94-3 C14H10O5 M.W. 258.23 A-039
 | | | Acyclovir-d4 CAS No. 59277-89-3(non-d) C8H7N5O3 M.W. 231.25 A-041
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| Acyclovir Impurity J C14H16N10O4 M.W. 388.35 A-0410
 | | | Acyclovir Impurity K C17H22N10O6 M.W. 462.43 A-0411
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| Acyclovir Impurity M C12H15N5O5 M.W. 309.28 A-0412
 | | | Acyclovir Impurity P C7H9N5O2 M.W. 195.18 A-0413
 |
| Acyclovir impurity G (2-[{(2-(Acetylamino)-6-oxo-1, 6-dihydro-9H-purin-9-yl} -methoxy]ethyl acetate) CAS No. 75128-73-3 C12H15N5O5 M.W. 309.28 A-042
 | | | Acyclovir Impurity A C10H13N5O4 M.W. 267.25 A-043
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| Acyclovir Impurity B C5H5N5O M.W. 151.13 A-044
 | | | Acyclovir Impurity C C8H11N5O3 M.W. 225.21 A-045
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| Acyclovir Impurity L C9H9N5O3 M.W. 235.20 A-047
 | | | Acyclovir Impurity F C10H13N5O4 M.W. 267.25 A-048
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| Acyclovir Impurity I C14H16N10O4 M.W. 388.35 A-049
 | | | Almotriptan-d6 CAS No. 154323-57-6 C17H19D6N3O2S M.W. 341.51 A-051
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| Almotriptan Hydrazine Precursor CAS No. N/A C11H17N3O2S M.W. 255.34 A-0510
 | | | Almotriptan Dimer Impurity CAS No. 1330166-13-6 C30H41N5O2S M.W. 535.76 A-0511
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| Almotriptan Isopropyl Impurity CAS No. N/A C19H29N3O2S M.W. 363.53 A-0512
 | | | Almotriptan CAS No. 154323-57-6 C17H25N3O2S M.W. 335.47 A-052
 |
| Gamma-Aminobutyric Acid Almotriptan CAS No. 603137-41-3 C17H25N3O4S M.W. 367.47 A-053
 | | | Almotriptan N-Oxide C17H25N3O3S M.W. 351.47 A-054
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| N-Desmethyl Almotriptan C16H23N3O2S M.W. 321.44 A-055
 | | | 3-Des[2-(Dimethylamino)ethyl]-3-[1-methyl-1-(Methylamino)ethyl]-Almotriptan CAS No. N/A C17H25N3O2S M.W. 335.47 A-056
![3-Des[2-(Dimethylamino)ethyl]-3-[1-methyl-1-(Methylamino)ethyl]-Almotriptan](product_images/A-056.jpg) |
| Almotriptan Hydroxymethyl Impurity CAS No. N/A C18H27N3O3S M.W. 365.50 A-057
 | | | Almotriptan N,N-Didesmethyl Impurity CAS No. N/A C15H21N3O2S M.W. 307.42 A-058
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| Almotriptan Aniline Precursor CAS No. 334981-10-1 C11H16N2O2S M.W. 240.33 A-059
 | | | Amiodarone HCl CAS No. 19774-82-4 C25H29I2NO3.HCl M.W. 683.80 A-071
 |
| N-Desethyl Amiodarone HCl CAS No. 83409-32-9 C23H25I2NO3.HCl M.W. 655.75 A-072
 | | | Amiodarone-d4 HCl CAS No. 19774-82-4 C25H25D4I2NO3.HCl M.W. 687.82 A-073
 |
| Desethyl Amiodarone-d4 HCl CAS No. 83409-32-9 (non-d) C23H21D4I2NO3.HCl M.W. 659.77 A-074
 | | | Amiodarone Impurity G CAS No. 1087223-70-8 C26H31I2NO4 M.W. 675.35 A-075
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| Amiodarone Impurity C (Deiodo Impurity) CAS No. 85642-08-6 C25H30NO3 M.W. 519.43 A-076
 | | | Amiodarone Impurity D CAS No. N/A C19H16I2O3 M.W. 546.15 A-077
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| Amiodarone Impurity E CAS No. N/A C19H18O3 M.W. 294.35 A-078
 | | | Amiodarone Impurity H CAS No. N/A C6H14ClN M.W. 135.64 A-079
 |
| Amlodipine Maleate CAS No. 88150-42-9 C20H25ClN2O5.C4H4O4 M.W. 408.89 116.07 A-081
 | | | Amlodipine Impurity F Maleate C19H23ClN2O5.C4H4O4 M.W. 394.86 116.07 A-0810
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| Dehydro Amlodipine C20H23ClN2O5 M.W. 406.87 A-0811
 | | | N-Fomyl Amlodipine C21H25ClN2O6 M.W. 436.90 A-0813
 |
| Amlodipine impurity CAS No. 103094-30-0 C25H34ClNO6 M.W. 480.01 A-0814
 | | | Amlodipine EP impurity A C28H27ClN2O7 M.W. 538.99 A-0815
 |
| Amlodipine EP impurity B (Methylaminophthaloyl Amlodipine) CAS No. 721958-72-1 C29H32ClN3O7 M.W. 570.05 A-0816
 | | | Amlodipine EP impurity G C17H18ClNO4 M.W. 335.79 A-0817
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| Amlodipine N-Lactoside C32H45ClN2O15 M.W. 733.17 A-0818
 | | | Ethyl Methyl (4RS)-2,6-Bis[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)- 1,4-dihydropyridine-3,5-dicarboxylate C22H30ClN3O6 M.W. 467.95 A-0819
![Ethyl Methyl (4RS)-2,6-Bis[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)- 1,4-dihydropyridine-3,5-dicarboxylate](product_images/A-0819.jpg) |
| Amlodipine-d4 Maleate CAS No. 88150-42-9 (non-d) C20H21ClN2O5D4.C4H4O4 M.W. 528.98 A-082
 | | | Amlodipine Impurity C CAS No. 721958-74-3 C22H30ClN3O6 M.W. 467.95 A-0820
 |
| Amlodipine Metabolite 5 CAS No. N/A C19H18ClNO7 M.W. 407.81 A-0821
 | | | Amlodipine Besylate CAS No. 111470-99-6 C20H25ClN2O5.C6H6O3S M.W. 567.07 A-083
 |
| R-Amlodipine CAS No. 103129-81-3 C20H25ClN2O5 M.W. 408.89 A-084
 | | | S-Amlodipine CAS No. 103129-82-4 C20H25ClN2O5 M.W. 408.89 A-085
 |
| R-Amlodipine-d4 C20H21ClN2O5D4 M.W. 412.91 A-086
 | | | S-Amlodipine-d4 C20H21ClN2O5D4 M.W. 412.91 A-087
 |
| Amlodipine impurity H C28H29ClN2O8 M.W. 557.00 A-088
 | | | Amlodipine Impurity E Maleate C21H27ClN2O5.C4H4O4 M.W. 422.91 116.07 A-089
 |
| N-Desethyl amodiaquine diHCl CAS No. 79352-78-6 C18H18ClN3O.2HCl M.W. 400.74 A-091
 | | | N-Desethyl amodiaquine-d5 diHCl CAS No. 79352-78-6(non-d) C18H13ClN3OD5.2HCl M.W. 405.77 A-092
 |
| Amodiaquin-d10 CAS No. 86-42-0 C20H12ClN3OD10 M.W. 365.93 A-093
 | | | Amodiaquine Impurity A C16H27N3O2 M.W. 293.41 A-094
 |
| Amodiaquine Impurity B CAS No. 103-09-2 C8H9NO2 M.W. 151.17 A-095
 | | | Amodiaquine Impurity C CAS No. 81099-86-7 C15H11ClN2O M.W. 270.72 A-096
 |
| Adapalene-d3 C28H25O3D3 M.W. 415.55 A-100001
 | | | Adapalene CAS No. 106685-40-9 C28H28O3 M.W. 412.53 A-100002
 |
| O-Desmethyl Adapalene CAS No. 125316-60-1 C27H26O3 M.W. 398.51 A-100003
 | | | Adapalene Methyl Ester CAS No. 106685-41-0 C29H30O3 M.W. 426.56 A-100004
 |
| Adapalene 3-Hydroxy-Adamantyl Impurity CAS No. N/A C28H28O4 M.W. 428.53 A-100005
 | | | Dehydro Azelnidipine CAS No. N/A C33H32N4O6 M.W. 580.65 A-101003
 |
| Azelnidipine CAS No. 123524-52-7 C33H34N4O6 M.W. 582.66 A-10101
 | | | Azelnidipine-d7 C33H27N4O6D7 M.W. 589.70 A-10102
 |
| Apixaban C25H25N5O4 M.W. 459.51 A-10201
 | | | Apixaban-13C-d3 C25H22N5O4D3 M.W. 463.52 A-10202
 |
| Anagrelide-13C3 C10H7Cl2N3O M.W. 259.06 A-10301
 | | | Azoxystrobin CAS No. 131860-33-8 C22H17N3O5 M.W. 403.40 A-104001
 |
| (Z)- Azoxystrobin CAS No. 143130-94-3 C22H17N3O5 M.W. 403.40 A-104002
 | | | Azoxystrobin-d4 CAS No. N/A C22H13N3O5D4 M.W. 407.42 A-104003
 |
| S-Adenosyl-L-Methionine CAS No. N/A C15H22N6O5S M.W. 398.44 A-106001
 | | | S-Adenosyl-L-Methionine-d3 CAS No. N/A C15H19N6O5SD3 M.W. 401.46 A-106002
 |
| Artesunate-d4 CAS No. N/A C19H24O8D4 M.W. 388.45 A-107001
 | | | Artesunate-d3 CAS No. N/A C19H25O8D3 M.W. 387.45 A-107002
 |
| Aztreonam Impurity A CAS No. 87500-74-1 C13H19N5O9S2 M.W. 453.45 A-108001
 | | | Aztreonam Impurity B C13H19N5O6S M.W. 373.39 A-108002
 |
| Aztreonam Impurity D C13H17N5O5S M.W. 355.37 A-108003
 | | | Aztreonam Impurity E C13H17N5O8S2 M.W. 435.44 A-108004
 |
| Aztreonam Impurity F C15H21N5O8S2 M.W. 463.49 A-108005
 | | | Amicarbazone CAS No. 129909-90-6 C10H19N5O2 M.W. 241.30 A-109001
 |
| Atenolol-d7 C14H15N2O3D7 M.W. 273.39 A-111
 | | | Afatinib CAS No. 850140-72-6 C24H25ClFN5O3 M.W. 485.95 A-111001
 |
| Afatinib-d4 CAS No. 850140-72-6(non-d) C24H21ClFN5O3D4 M.W. 489.97 A-111002
 | | | Atenolol impurity A (2-(4-Hydroxyphenyl)acetamide) CAS No. 17194-82-0 C8H9NO2 M.W. 151.16 A-112
 |
| Acetylglycinamide Impurity A C7H10N2O3 M.W. 170.17 A-112001
 | | | Acetylglycinamide Impurity B CAS No. 1121-89-7 C5H7NO2 M.W. 113.12 A-112002
 |
| Atenolol impurity B (2-[4-(2,3-Dihydroxypropoxy)phenyl]acetamide) CAS No. 61698-76-8 C11H15NO4 M.W. 225.24 A-113
 | | | Arecoline CAS No. 63-75-2 C8H13NO2 M.W. 155.20 A-113001
 |
| Atenolol impurity C (2-[4-(2,3-Epoxypropoxy)phenyl]acetamide) CAS No. 29122-69-8 C11H13NO3 M.W. 207.23 A-114
 | | | Apaziquone CAS No. 114560-48-4 C15H16N2O4 M.W. 288.31 A-114001
 |
| Atenolol impurity D (4-(2-Hydroxy-3-isopropylaminopropoxy)phenylacetic acid) C14H21NO4 M.W. 267.32 A-115
 | | | Alpha-Artemether CAS No. 71939-51-0 C16H26O5 M.W. 298.38 A-115001
 |
| Artemether-d3 C16H23O5D3 M.W. 301.40 A-115002
 | | | Artemether CAS No. 71963-77-4 C16H26O5 M.W. 298.37 A-115003
 |
| Arbidol CAS No. 131707-23-8 C22H25BrN2O3S HCl M.W. 477.42 36.46 A-116001
 | | | Arbidol Impurity A CAS No. N/A C20H21BrN2O3S M.W. 449.37 A-116002
 |
| Arbidol Impurity B CAS No. N/A C11H12BrNO M.W. 254.13 A-116003
 | | | Arbidol Impurity C CAS No. N/A C12H13BrN2O2 M.W. 297.15 A-116004
 |
| Arbidol Impurity D CAS No. N/A C12H15NO M.W. 189.26 A-116005
 | | | Arbidol Impurity E CAS No. N/A C12H13Br2NO M.W. 347.05 A-116006
 |
| Atenolol impurity F (4-Hydroxyphenylacetic acid) CAS No. 156-38-7 C8H8O3 M.W. 152.15 A-117
 | | | Azamulin CAS No. 76530-44-4 C24H38N4O4S M.W. 478.66 A-117001
 |
| Atenolol Impurity H C14H20N2O2 M.W. 248.33 A-118
 | | | Asperulosidic Acid CAS No. 25368-11-0 C18H24O12 M.W. 432.38 A-118001
 |
| Atenolol Impurity G C14H21NO4 M.W. 267.33 A-119
 | | | Aciclovir Impurity B (Guanina) CAS No. N/A C5H5N5O M.W. 151.13 A-120001
 |
| Atorvastatin Calcium Salt CAS No. 134523-03-8 C66H68CaF2N4O10 M.W. 597.73 A-121
 | | | Atorvastatin Impurity 2 C36H39FN2O5 M.W. 598.72 A-1210
 |
| Acesulfame-d4 Potassium CAS No. N/A C4NO4SD4 K M.W. 166.17 39.10 A-121001
 | | | Atorvastatin Impurity 3 C37H43FN2O5 M.W. 614.76 A-1211
 |
| Atorvastatin Impurity 6 C33H34F2N2O5 M.W. 576.65 A-1212
 | | | Atorvastatin Impurity 8 C33H34FN2NaO5 M.W. 580.64 A-1213
 |
| Atorvastatin-d5 Lactone CAS No. 125995-03-1 (non-D) C33H28FN2O4D5 M.W. 545.67 A-1214
 | | | Atorvastatin EP Impurity F C40H47FN3O8 . 1/2Ca M.W. 716.83 20.04 A-1215
 |
| Atorvastatin tert-Butyl Ester C37H43FN2O5 M.W. 614.76 A-1216
 | | | O-Methyl Atorvastatin Calcium Salt C34H36FN2O5 . 1/2Ca M.W. 571.67 20.04 A-1217
 |
| Atorvastatin Lactam Sodium Salt Impurity CAS No. 148217-40-7 C33H34FN2O6 Na M.W. 573.65 22.99 A-1218
 | | | Atorvastatin Impurity F (Amide Impurity) Sodium Salt C40H47FN3O8. Na M.W. 716.83 22.99 A-1219
 |
| Atorvastatin-d5 Calcium Salt CAS No. 134523-03-8(non-d) C66H58D10CaF2N4O10 M.W. 602.76 A-122
 | | | Atorvastatin Related Compound E CAS No. 1105067-88-6 C66H68F2N4O10 Ca M.W. 1115.30 40.08 A-1220
 |
| Acriflavine CAS No. 8048-52-0 C14H14N3. C13H11N3. Cl M.W. 224.29 209.25 35.45 A-122001
 | | | para-Hydroxy Atorvastatin Calcium Salt CAS No. 214217-88-6 C66H68CaF2N4O12 M.W. 613.73 A-123
 |
| para-Hydroxy Atorvastatin-d5 Calcium Salt CAS No. 265989-45-5 C66H58D10CaF2N4O12 M.W. 618.76 A-124
 | | | ortho-Hydroxy Atorvastatin Calcium Salt CAS No. 214217-86-6 C66H68CaF2N4O12 M.W. 613.73 A-125
 |
| ortho-Hydroxy Atorvastatin-d5 Calcium Salt CAS No. 265989-47-7 C66H58D10CaF2N4O12 M.W. 618.76 A-126
 | | | Atorvastatin Lactone C33H33FN2O4 M.W. 540.64 A-127
 |
| Para-Hydroxy atorvastatin lactone C33H33FN2O4 M.W. 556.64 A-128
 | | | Ortho-Hydroxy atorvastatin lactone C33H33FN2O4 M.W. 556.64 A-129
 |
| Ortho-Hydroxy atorvastatin-d5 lactone C33H28FN2O5D5 M.W. 561.67 A-130
 | | | Para-Hydroxy atorvastatin-d5 lactone C33H28FN2O5D5 M.W. 561.67 A-131
 |
| Atorvastatin Lactone Diepoxide C33H33FN2O6 M.W. 572.64 A-1310
 | | | Defluoro atorvastatin calcium salt CAS No. 433289-84-0 C33H35N2O5.Ca M.W. 539.66 40.08 A-132
 |
| Atorvastatin Acetonide tert-Butyl Ester CAS No. 125971-95-1 C40H47FN2O5 M.W. 654.83 A-133
 | | | Atorvastatin Methyl Ester CAS No. 345891-62-5 C34H37FN2O5 M.W. 572.68 A-136
 |
| Atorvastatin Diepoxide Calcium Salt CAS No. NA C66H68CaF2N4O14 M.W. 1219.34 A-137
 | | | Atorvastatin Epoxydione Impurity CAS No. 148146-51-4 C26H22FNO4 M.W. 431.47 A-138
 |
| Dihydroxy Diketo Atorvastatin Impurity CAS No. 1046118-44-8 C26H24FNO5 M.W. 449.48 A-139
 | | | Aripiprazole-d8 C23H19Cl2N3O2D8 M.W. 456.44 A-141
 |
| Aripiprazole Impurity E CAS No. 120004-79-7 C13H16ClN2O M.W. 253.73 A-1410
 | | | OPC 14714 CAS No. 203395-84-0 C23H28BrN3O2 M.W. 458.40 A-1411
 |
| Aripiprazole Impurity B C23H28ClN3O2 M.W. 413.95 A-1412
 | | | 7-(4-Hydroxybutoxy)-3,4-dihydrocarbostyril CAS No. N/A C13H17NO3 M.W. 235.29 A-1413
 |
| 1-[4-[4-(2,3-Dichlorophenyl)piperazin-1-yl]butyl]-7-Hydroxy-3,4-Dihydrocarbostyril CAS No. N/A C23H27Cl2N3O2 M.W. 448.40 A-1414
![1-[4-[4-(2,3-Dichlorophenyl)piperazin-1-yl]butyl]-7-Hydroxy-3,4-Dihydrocarbostyril](product_images/A-1414.jpg) | | | Aripiprazole Impurity CAS No. N/A C23H29Cl2N3O2 M.W. 450.41 A-1415
 |
| Aripiprazole Dimer Impurity CAS No. N/A C48H56Cl4N6O4 M.W. 922.83 A-1416
 | | | Aripiprazole Metabolite C13H15NO4 M.W. 249.27 A-1417
 |
| Aripiprazole Bromo Impurity CAS No. 203395-59-9 C13H14BrNO2 M.W. 296.17 A-1418
 | | | Aripiprazole C23H27Cl2N3O2 M.W. 448.40 A-142
 |
| Aripiprazole Related Compound C (1- (2,3-Dichlorophenyl) piperazine HCl)) CAS No. 119532-26-2 C10H12Cl2N2.HCl M.W. 231.13 36.46 A-143
 | | | Aripiprazole Related Compound B C26H32N2O5 M.W. 452.56 A-144
 |
| Aripiprazole N-Oxide C23H27Cl2N3O3 M.W. 464.40 A-145
 | | | Dehydro Aripiprazole C23H25Cl2N3O2 M.W. 446.38 A-146
 |
| Aripiprazole Impurity D CAS No. 882880-12-8 C22H24N2O4 M.W. 380.45 A-149
 | | | Acamprosate-d3 Calcium C5H7NO4SD3 . 0.5Ca M.W. 203.26 A-151
 |
| N-Acetylhomotaurine C5H11NO5S M.W. 197.21 A-152
 | | | N-Acetylhomotaurine-d6 C5H5NO5SD6 M.W. 203.25 A-153
 |
| Albendazole sulfone (Albendazole Impurity C) CAS No. 75184-71-3 C12H15N3O4S M.W. 297.34 A-161
 | | | Albendazole Sulfoxide (Ricobendazole, Albendazole Impurity B) CAS No. 54029-12-8 C12H15N3O3S M.W. 281.34 A-162
 |
| Albendazole Impurity A CAS No. NA C10H13N3S M.W. 207.30 A-163
 | | | Albendazole Impurity E CAS No. NA C9H9N3O2 M.W. 191.19 A-164
 |
| Albendazole-d7 C12H8N3O2SD7 M.W. 272.38 A-165
 | | | Albendazole CAS No. 54965-21-8 C12H15N3O2S M.W. 265.34 A-166
 |
| Albendazole Impurity D CAS No. N/A C10H13N3O2S M.W. 239.30 A-167
 | | | Albendazole Impurity F CAS No. N/A C10H11N3O2S M.W. 237.28 A-168
 |
| Albendazole sulfoxide-d7 CAS No. N/A C12H8N3O3SD7 M.W. 288.38 A-169
 | | | Acetochlor-d11 C14H9ClNO2D11 M.W. 280.84 A-171
 |
| Alachlor-d13 C14H7ClNO2D13 M.W. 282.85 A-181
 | | | Albuterol-d3 (Salbutamol-d3) C13H18NO3D3 M.W. 242.33 A-191
 |
| (R)-Albuterol HCl C13H21NO3.HCl M.W. 239.32 36.46 A-193
 | | | Albuterol Dimer CAS No. 149222-15-1 C26H40N2O5 M.W. 460.62 A-194
 |
| (S)-Albuterol CAS No. 50293-91-9 C13H21NO3 HCl M.W. 239.32 36.46 A-195
 | | | Amitriptyline-d6 HCl CAS No. 203645-63-0 C20H17ND6.HCl M.W. 283.45 36.46 A-201
 |
| Amitriptyline Octahydro Impurity C20H23N M.W. 277.41 A-2010
 | | | 10-Hydroxy Amitriptyline Oxalate C20H23NO . C2H2O4 M.W. 293.41 90.04 A-2011
 |
| Amitriptyline Impurity A CAS No. 1210-35-1 C15H12O M.W. 208.26 A-202
 | | | Amitriptyline Impurity B CAS No. 1159-03-1 C20H25NO M.W. 295.43 A-203
 |
| Cyclobezaprine HCl CAS No. 6202-23-9 C20H22NCl M.W. 311.86 A-204
 | | | Amitriptyline-d3 HCl C20H20ND3.HCl M.W. 280.43 36.46 A-205
 |
| Amitriptyline-N-Oxide C20H23NO M.W. 293.41 A-206
 | | | Amitriptyline N-Glucuronide (mixture of diastereomers) C26H31NO6 M.W. 453.54 A-207
 |
| Amitriptyline-N-Glucuronide-d3 C26H28NO6D3 M.W. 456.56 A-208
 | | | Amitriptyline Hydroxy Impurity C20H23NO M.W. 293.41 A-209
 |
| Atrazine-d5 CAS No. 163165-75-1 C8H9ClN5D5 M.W. 220.72 A-211
 | | | Desisopropylatrazine-d5 C5H3ClN5D5 M.W. 178.64 A-212
 |
| Desethylatrazine-d7 C6H3ClN5D7 M.W. 194.67 A-213
 | | | Desethylterbutylazine-d9 C7H3ClN5D9 M.W. 210.71 A-214
 |
| Adrenaline-d3 (Epinephrine-d3) CAS No. 51-43-4(non-d) C9H10NO3D3 M.W. 186.23 A-221
 | | | Amoxicillin-d4 CAS No. 26787-78-0 (non-d) C16H15N3O5SD4 M.W. 369.44 A-231
 |
| Amoxicillin Impurity I CAS No. N/A C8H9NO3 M.W. 167.17 A-2310
 | | | Amoxicillin Impurity J CAS No. N/A N/A M.W. N/A A-2311
 |
| Amoxicillin Impurity K CAS No. N/A N/A M.W. N/A A-2312
 | | | Amoxicillin Impurity L C24H29N5O7S2 M.W. 563.66 A-2314
 |
| Amoxicillin Impurity M CAS No. N/A C24H31N5O8S2 M.W. 581.67 A-2315
 | | | Amoxicillin piperazine-2,5-dione (Amoxicillin Impurity C) C16H19N3O5S M.W. 365.41 A-232
 |
| Amoxicillin Impurity A CAS No. N/A C8H12N2O3S M.W. 216.26 A-233
 | | | Amoxicillin Impurity B CAS No. N/A C16H19N3O5S M.W. 365.41 A-234
 |
| Amoxicillin Impurity D CAS No. N/A C16H21N3O6S M.W. 383.43 A-235
 | | | Amoxicillin Impurity E CAS No. N/A C15H21N3O4S M.W. 339.42 A-236
 |
| Amoxicillin Impurity F CAS No. N/A C10H8N2O2 M.W. 188.19 A-237
 | | | Amoxicillin Impurity G CAS No. N/A C24H26N4O7S M.W. 514.56 A-238
 |
| Amoxicillin Impurity H CAS No. N/A C13H17NO4 M.W. 251.28 A-239
 | | | Anastrozole CAS No. 120511-73-1 C17H19N5 M.W. 293.37 A-241
 |
| Anastrozole Impurity B CAS No. N/A C16H17N5 M.W. 279.35 A-2410
 | | | Anastrozole Impurity C (Dimer Impurity) CAS No. 1216898-82-6 C30H31N9 M.W. 517.64 A-2411
 |
| Anastrozole Impurity D CAS No. N/A C15H17BrN2 M.W. 305.22 A-2412
 | | | Anastrozole Impurity E CAS No. N/A C15H16Br2N2 M.W. 384.12 A-2413
 |
| Anastrozole-d12 CAS No. 120511-73-1 (non-d) C17H7N5D12 M.W. 305.45 A-242
 | | | Anastrozole N-glucuronide C23H27N5O6 M.W. 469.50 A-243
 |
| Anastrozole Impurity (alfa1 , alfa1, alfa3, alfa3-Tetramethyl-5-(1H-1,2,4-triazol-1-ylmethyl)-1,3-Benzenediacetic acid) CAS No. 1338800-81-9 C17H21N3O4 M.W. 331.37 A-244
 | | | Anastrozole Impurity (alfa1 , alfa1, alfa3, alfa3-Tetramethyl-5-(1H-1,2,4-triazol-1-ylmethyl)-1,3-Benzenediacetamide) CAS No. 120512-04-1 C17H23N5O2 M.W. 329.41 A-245
 |
| Anastrozole Impurity (3-(1-Cyano-1-methylethyl)-alfa,alfa-dimethyl-5-(1H-,1,2,4-triazole-1-ylmethyl)-benzeneacetamide) CAS No. 120512-03-0 C17H21N5O M.W. 311.39 A-246
 | | | Anastrozole Impurity (2-(3-((1H-1,2,4-triazol-1-yl)methyl)-5-(1-amino-2-methyl-1-oxopropan-2-yl)phenyl)-2-methylpropanoi CAS No. N/A C17H22N4O3 M.W. 330.39 A-247
 |
| Anastrozole Impurity (3-(1-Cyano-1-methylethyl)-alfa,alfa-dimethyl-5-(1H-,1,2,4-triazole-1-ylmethyl)-benzeneacetic acid) CAS No. 1338800-82-0 C17H20N4O2 M.W. 312.37 A-248
 | | | Anastrozole Impurity A CAS No. N/A C26H29N3 M.W. 383.54 A-249
 |
| Atomoxetine HCl CAS No. 82248-59-7 C17H21NO.HCl M.W. 291.8 A-251
 | | | Atomoxetine-d3 HCl CAS No. 82248-59-7 (non-d) C17H18NOD3.HCl M.W. 294.85 A-252
 |
| 4-Hydroxy Atomoxetine Oxalate C17H21NO2.C2H2O4 M.W. 271.36 90.04 A-253
 | | | 4-Hydroxy Atomoxetine-d3 Oxalate C17H18NO2D3.C2H2O4 M.W. 274.38 90.04 A-254
 |
| 4’-Hydroxy Atomoxetine Glucuronide CAS No. 540729-08-6 C23H29NO8 M.W. 447.49 A-255
 | | | 4’-Hydroxy Atomoxetine-d3 Glucuronide C23H26NO8D3 M.W. 450.51 A-256
 |
| Azithromycin-13C-d3 CAS No. 83905-01-5 (non-d) C38H69N2O12D3 M.W. 753.01 A-261
 | | | N-Desmethyl Azithromycin C37H70N2O12 M.W. 734.98 A-262
 |
| Azithromycin Impurity H CAS No. 612069-30-4 C45H77N3O15S M.W. 932.19 A-263
 | | | Atovaquone-d4 CAS No. 95233-18-4(non-d) C22H15ClO3D4 M.W. 370.87 A-271
 |
| Deschloro Atovaquone C22H20O3 M.W. 332.40 A-272
 | | | 1-[4-(4-Chlorophenyl)cyclohexyl]-Ethanone CAS No. 95233-36-6 C14H17ClO M.W. 236.74 A-273
![1-[4-(4-Chlorophenyl)cyclohexyl]-Ethanone](product_images/A-273.jpg) |
| Abacavir Sulfate CAS No. 136470-78-5 C28H36N12O2.H2O4S M.W. 572.68 98.08 A-281
 | | | Abacavir-d4 CAS No. 136470-78-5 (non-d) C14H14N6OD4 M.W. 290.36 A-282
 |
| Abacavir-5'-glucuronide C20H26N6O7 M.W. 462.47 A-283
 | | | Abacavir 5’-Phosphate CAS No. 136470-77-4 C14H19N6O4P M.W. 366.32 A-284
 |
| Avanafil CAS No. 330784-47-9 C23H26ClN7O3 M.W. 483.96 A-291
 | | | Avanafil-13CD3 C22H23ClN7O313CD3 M.W. 487.97 A-292
 |
| Dihydroartemisinin CAS No. 71939-50-9 C15H24O5 M.W. 284.36 A-301
 | | | Dihydroartemisinin-d3 CAS No. N/A C15H21O5D3 M.W. 287.37 A-302
 |
| Dihydroartemisinin-d4 CAS No. N/A C15H20O5D4 M.W. 288.38 A-303
 | | | Artemisinin-d3 C15H19O5D3 M.W. 285.36 A-304
 |
| Ambrisentan CAS No. 177036-94-1 C22H22N2O4 M.W. 378.43 A-311
 | | | Ambrisentan-d5 C22H17N2O4D5 M.W. 383.46 A-312
 |
| Ambrisentan acyl glucuronide C28H30N2O10 M.W. 554.56 A-313
 | | | Aprepitant CAS No. 170729-80-3 C23H21F7N4O3 M.W. 534.44 A-321
 |
| (1S, 2R, 3S)-Aprepitant CAS No. N/A C23H21F7N4O3 M.W. 534.44 A-3210
 | | | (1S, 2S, 3S)-Aprepitant CAS No. N/A C23H21F7N4O3 M.W. 534.44 A-3211
 |
| Aprepitant-d4 CAS No. 170729-80-3 (non-d) C23H17F7N4O3D4 M.W. 538.46 A-322
 | | | Aprepitant glucuronide aprepitant glucuronide M.W. 710.56 A-323
 |
| (R, R, R)-Aprepitant CAS No. 1148113-53-4 C23H21F7N4O3 M.W. 534.44 A-324
 | | | ent-Aprepitant CAS No. 172822-29-6 C23H21F7N4O3 M.W. 534.44 A-325
 |
| Defluoro Aprepitant CAS No. 170729-76-7 C23H22F6N4O3 M.W. 516.45 A-326
 | | | (1R, 2S, 3R)-Aprepitant CAS No. N/A C23H21F7N4O3 M.W. 534.44 A-327
 |
| (1S, 2R, 3R)-Aprepitant CAS No. N/A C23H21F7N4O3 M.W. 534.44 A-328
 | | | (1R, 2S, 3S)-Aprepitant CAS No. N/A C23H21F7N4O3 M.W. 534.44 A-329
 |
| Alendronic Acid CAS No. 66376-36-1 C4H13NO7P2 M.W. 249.10 A-331
 | | | Alendronic Acid-d6 CAS No. 66376-36-1 (non-d) C4H7NO7P2D6 M.W. 255.13 A-332
 |
| Alendronate Sodium CAS No. 1159813-02-1 C4H12NO7P2. Na M.W. 248.09 22.99 A-333
 | | | Anilazine CAS No. 101-05-3 C9H4Cl3N4 M.W. 275.55 A-341
 |
| Anilazine-d4 C9HCl3N4D4 M.W. 279.55 A-342
 | | | Acetazolamide CAS No. 59-66-5 C4H6N4O3S2 M.W. 222.25 A-351
 |
| Acetazolamide Impurity G CAS No. N/A C2H3N3S2 M.W. 133.19 A-3510
 | | | Acetazolamide-d3 CAS No. 59-66-5 (non-d) C4H3N4O3S2D3 M.W. 225.26 A-352
 |
| Acetazolamide-13C2-d3 CAS No. 59-66-5 (non-d) C4H3N4O3S2D3 M.W. 227.24 A-353
 | | | Acetazolamide Impurity A CAS No. N/A C4H4ClN3OS M.W. 177.61 A-354
 |
| Acetazolamide Impurity B CAS No. N/A C4H5N3OS M.W. 143.17 A-355
 | | | Acetazolamide Impurity C CAS No. 32873-56-6 C4H5N3OS2 M.W. 175.23 A-356
 |
| Acetazolamide Impurity D CAS No. 14949-00-9 C2H4N4O2S2 M.W. 180.21 A-357
 | | | Acetazolamide Impurity E CAS No. N/A C4H5N3O4S2 M.W. 223.23 A-358
 |
| Acetazolamide Impurity F CAS No. N/A C8H9N7O6S4 M.W. 427.46 A-359
 | | | Adefovir CAS No. 106941-25-7 C8H12N5O4P M.W. 273.19 A-361
 |
| Adefovir-d4 CAS No. 106941-25-7 (non-d) C8H8N5O4PD4 M.W. 277.21 A-362
 | | | Adefovir Dipivoxil C20H32N5O8P M.W. 501.48 A-363
 |
| Adefovir Dipivoxyl Impurity A CAS No. 142341-05-7 C14H22N5O6P M.W. 387.34 A-364
 | | | Adefovir Dipivoxyl Impurity C CAS No. 142341-04-6 C16H26N5O6P M.W. 415.39 A-365
 |
| Adefovir Dipivoxyl Impurity B C41H64N10O16P2 M.W. 1014.97 A-366
 | | | Adefovir Dipivoxyl Impurity I (Adefovir Dipivoxyl N6-Hydroxymethyl Impurity) C21H34N5O9P M.W. 531.51 A-367
 |
| Asoxime Chloride CAS No. 34433-31-3 C14H16N4O3.2 Cl M.W. 288.31 2 35.45 A-371
 | | | Asoxime-d4 Chloride CAS No. 34433-31-3 (non-d) C14H12N4O3D4.2 Cl M.W. 292.33 2 35.45 A-372
 |
| Aceclofenac C16H13Cl2NO4 M.W. 354.19 A-381
 | | | Aceclofenac Impurity G C18H15Cl2NO6 M.W. 412.23 A-3810
 |
| Aceclofenac Impurity H C20H17Cl2NO8 M.W. 470.27 A-3811
 | | | Aceclofenac Impurity I C14H9Cl2NO M.W. 278.14 A-3812
 |
| 4-Hydroxy Aceclofenac CAS No. 229308-90-1 C16H13Cl2NO5 M.W. 370.19 A-3813
 | | | Aceclofenac-d4 CAS No. NA C16H9Cl2NO4D4 M.W. 358.22 A-382
 |
| Aceclofenac-13C2-d4 CAS No. NA C16H9Cl2NO4D4 M.W. 360.19 A-383
 | | | Aceclofenac Impurity A C14H11Cl2NO2 M.W. 296.16 A-384
 |
| Aceclofenac Impurity B C15H13Cl2NO2 M.W. 310.18 A-385
 | | | Aceclofenac Impurity C C16H15Cl2NO2 M.W. 324.21 A-386
 |
| Aceclofenac Impurity D C17H15Cl2NO4 M.W. 368.22 A-387
 | | | Aceclofenac Impurity E C18H17Cl2NO4 M.W. 382.25 A-388
 |
| Aceclofenac Impurity F C23H19Cl2NO4 M.W. 444.32 A-389
 | | | Amprenavir CAS No. 161814-49-9 C26H36N2O6S M.W. 504.65 A-391
 |
| Amprenavir-d4 CAS No. 161814-49-9 (non-d) C26H33N2O6SD4 M.W. 509.68 A-392
 | | | Amiloride Hydrochloride Dihydrate CAS No. 2016-88-8 C6H8ClN7O.HCl.2H2O M.W. 229.63 36.46 2 18.02 A-401
 |
| Amiloride-15N3 Hydrochloride C6H8ClN7O . HCl M.W. 232.61 36.4 A-402
 | | | Amlexanox C16H14N2O4 M.W. 298.30 A-411
 |
| Abamectin C48H72O14 M.W. 873.10 A-421
 | | | Avermectin B1a (Abamectin B1a) CAS No. 65195-55-3 C48H72O14 M.W. 873.10 A-422
 |
| Alvimopan CAS No. 156053-89-3 C25H32N2O4 M.W. 424.54 A-431
 | | | Alvimopan-d5 CAS No. 156053-89-3 (non-d) C25H27N2O4D5 M.W. 429.63 A-432
 |
| Alvimopan Acyl Glucuronide (mixture of isomers) CAS No. 1260616-95-2 C31H40N2O10 M.W. 600.67 A-433
 | | | Alvimopan Phenolic Glucuronide (mixture of isomers) C31H40N2O10 M.W. 600.67 A-434
 |
| Alvimopan Sulfate C25H32N2O7S M.W. 504.61 A-435
 | | | Alvimopan-d5 Metabolite C23H24NO3D5 M.W. 372.52 A-436
 |
| Alvimopan Metabolite (ADL 08-0011) CAS No. 156130-41-5 C23H29NO3 M.W. 367.49 A-437
 | | | Acemetacin-acyl-β-D-glucuronide CAS No. 1260603-31-3 C27H26ClNO12 M.W. 591.96 A-441
 |
| Ascomycin CAS No. 11011-38-4 C43H69NO12 M.W. 792.03 A-451
 | | | Aminocaproic acid CAS No. 60-32-2 C6H13NO2 M.W. 131.18 A-461
 |
| Aminocaproic-d6 Acid CAS No. 60-32-2 (non-d) C6H7NO2D6 M.W. 137.24 A-462
 | | | Algestone Acetophenide CAS No. 24356-94-3 C29H36O4 M.W. 448.61 A-471
 |
| Arachidonic Acid CAS No. 506-32-1 C20H32O2 M.W. 304.48 A-481
 | | | Arachidonic Acid-d8 CAS No. 506-32-1 (non-d) C20H24O2D8 M.W. 312.56 A-482
 |
| Alogliptin Benzoate CAS No. 850649-62-6 C18H21N5O2. C7H6O2 M.W. 339.40 122.12 A-491
 | | | Alogliptin Related Compound 8 CAS No. N/A C23H25N7O4 M.W. 463.50 A-4910
 |
| Alogliptin Related Compound 9 CAS No. N/A C23H25N7O4 M.W. 463.50 A-4911
 | | | Alogliptin Related Compound 10 CAS No. N/A C26H26N6O2 M.W. 454.54 A-4912
 |
| Alogliptin Related Compound 11 CAS No. N/A C25H25N5O3 M.W. 443.51 A-4913
 | | | Alogliptin Related Compound 12 CAS No. N/A C18H21N5O2 M.W. 339.40 A-4914
 |
| Alogliptin Related Compound 13 C17H19N5O2 . C7H6O2 M.W. 325.37 122.12 A-4915
 | | | Alogliptin Related Compound 14 C18H23N5O3 M.W. 357.42 A-4916
 |
| Alogliptin-13C-d3 CAS No. 850649-62-6 (non-d) C18H18N5O2D3 M.W. 343.41 A-492
 | | | Alogliptin Related Compound 1 CAS No. N/A C10H9ClN4O4 M.W. 284.66 A-493
 |
| Alogliptin Related Compound 2 CAS No. N/A C18H14ClN5O4 M.W. 399.80 A-494
 | | | Alogliptin Related Compound 3 [(S)-Alogliptin] CAS No. N/A C18H21N5O2 M.W. 339.40 A-495
![Alogliptin Related Compound 3 [(S)-Alogliptin]](product_images/A-495.jpg) |
| Alogliptin Related Compound 4 CAS No. N/A C31H30N8O4 M.W. 578.64 A-496
 | | | Alogliptin Related Compound 5 CAS No. N/A C10H16N4O2 M.W. 224.26 A-497
 |
| Alogliptin Related Compound 6 CAS No. N/A C13H17N3 M.W. 215.30 A-498
 | | | Alogliptin Related Compound 7 CAS No. N/A C15H20N6O4 M.W. 348.36 A-499
 |
| Asenapine Maleate CAS No. 65576-45-6 C17H16ClNO.C4H4O4 M.W. 285.78 116.07 A-501
 | | | Asenapine-13C-d3 CAS No. 65576-45-6 (non-d) C17H13ClNOD3 M.W. 289.78 A-502
 |
| Asenapine-N-glucuronide C23H25ClNO7 M.W. 462.91 A-503
 | | | Asenapine-N-oxide C17H16ClNO2 M.W. 301.78 A-504
 |
| N-Desmethyl Asenapine HCl CAS No. 128915-56-0 C16H14ClNO.HCl M.W. 271.75 36.46 A-505
 | | | N-Desmethyl Asenapine-d4 CAS No. 128915-56-0 (non-d) C17H12ClNOD4 M.W. 289.80 A-506
 |
| N-Desmethyl Asenapine glucuronide C22H22ClNO7 M.W. 447.88 A-507
 | | | Asenapine-N-glucuronide-13C-d3 C23H22ClNO7D3 M.W. 465.93 A-508
 |
| Adiphenine HCl CAS No. 50-42-0 C20H25NO2.HCl M.W. 311.43 36.46 A-511
 | | | Adrenochrome CAS No. 54-06-8 C9H9NO3 M.W. 179.18 A-521
 |
| Amaranth CAS No. 915-67-3 C20H11N2O10S3.3 Na M.W. 535.51 3 22.99 A-531
 | | | Alverine Citrate CAS No. 150-59-4 C20H27N.C6H8O7 M.W. 281.44 192.13 A-541
 |
| Alverine-d5 citrate CAS No. 150-59-4 (non-d) C20H22ND5.C6H8O7 M.W. 286.48 192.13 A-542
 | | | 4-Hydroxy Alverine Glucuronide C26H35NO7 M.W. 473.57 A-543
 |
| 4-Hydroxy Alverine CAS No. 142047-94-7 C20H27NO M.W. 297.44 A-544
 | | | 4-Hydroxy Alverine-d5 CAS No. 142047-94-7 (non-d) C20H22NOD5 M.W. 302.48 A-545
 |
| N-Desethyl Alverine HCl C18H23N.HCl M.W. 253.39 36.46 A-546
 | | | 20080508C C9H4O4D4 M.W. 184.19 A-551
 |
| Apomorphine Hydrochloride CAS No. 314-19-2 C17H17NO2.HCl M.W. 267.33 36.46 A-561
 | | | Apomorphine-13C-d3 Hydrochloride CAS No. 314-19-2 (non-labelled) C17H14NO2D3.HCl M.W. 271.34 36.46 A-562
 |
| Acepromazine Maleate CAS No. 3598-37-6 C19H22N2OS.C4H4O4 M.W. 326.46 116.07 A-571
 | | | Acepromazine-d6 Maleate CAS No. N/A C19H16N2OSD6 C4H4O4 M.W. 332.50 116.07 A-572
 |
| 13-cis-Acitretin-d3 C21H23O3D3 M.W. 329.46 A-581
 | | | Acitretin CAS No. 55079-83-9 C21H26O3 M.W. 326.44 A-582
 |
| Acitretin-d3 C21H23O3D3 M.W. 329.46 A-583
 | | | Acitretin Glucuronide C27H34O9 M.W. 502.57 A-584
 |
| 13-cis-Acitretin CAS No. 69427-46-9 C21H26O3 M.W. 326.44 A-585
 | | | 13-cis-Acitretin Glucuronide 13-cis-Acitretin Glucuronide M.W. 502.57 A-586
 |
| Argatroban CAS No. 74863-84-6 C23H36N6O5S M.W. 508.64 A-591
 | | | (2S,4S)-Argatroban CAS No. 189264-03-7 C23H36N6O5S M.W. 508.64 A-592
 |
| Ambroxol Impurity C C13H16Br2N2O M.W. 376.09 A-601
 | | | Ambroxol-d5 HCl C13H13Br2N2OD5.HCl M.W. 383.14 36.46 A-6010
 |
| trans-4-Aminocyclohexanol Hydrochloride C6H13NO . HCl M.W. 115.18 36.46 A-6011
 | | | cis-4-Aminocyclohexanol Hydrochloride C6H13NO . HCl M.W. 115.18 36.46 A-6012
 |
| Ambroxol Cycloimine Impurity CAS No. N/A C14H16Br2N2O M.W. 388.10 A-6013
 | | | Ambroxol CAS No. 18683-91-5 C13H18Br2N2O M.W. 378.11 A-602
 |
| Ambroxol Impurity A C7H7Br2NO M.W. 280.95 A-603
 | | | Ambroxol Impurity B C14H18Br2N2O M.W. 390.12 A-604
 |
| Ambroxol Impurity E C7H5Br2NO M.W. 278.93 A-606
 | | | Ambroxol Impurity D CAS No. 107814-37-9 cis-Ambroxol HCl M.W. 378.11 36.46 A-607
 |
| Ambroxol-d10 C13H8Br2N2OD10 M.W. 388.17 A-608
 | | | Ambroxol Impurity C13H16Br2N2O M.W. 376.09 A-609
 |
| 1-Aminoadamantane HCl C10H17N.HCl M.W. 151.25 36.46 A-611
 | | | 1-Aminoadamantane-d6 C10H11ND6 M.W. 157.28 A-612
 |
| Amantadine Hydrochloride CAS No. 187.71 C10H17N HCl M.W. 187.71 A-621
 | | | Amantadine-d6 C10H11ND6 M.W. 157.29 A-622
 |
| Amantadine CAS No. 768-94-5 C10H17N M.W. 151.25 A-623
 | | | Sodium Alginate [C12H14O12 . 2 Na]n M.W. [350.24 2 22.99]n A-631
 |
| Aspirin Impurity (2-(2,4-Dihydroxybenzoyl)benzoic Acid) CAS No. 2513-33-9 C14H10O5 M.W. 258.23 A-647
 | | | 5-(N-β-D-Glucopyranosylamino) salicylic acid CAS No. 123135-21-7 C13H17NO8 M.W. 315.28 A-648
 |
| Alosetrone-d3 C17H15N4OD3 M.W. 297.38 A-651
 | | | Alosetron CAS No. 122852-42-0 C17H18N4O M.W. 294.36 A-652
 |
| Alosetron-13C-d3 CAS No. NA C17H15N4OD3 M.W. 298.37 A-653
 | | | Ampicillin-d5 C16H14N3O4SD5 M.W. 354.44 A-661
 |
| Alizapride-d3 C16H18D3N5O2 M.W. 318.38 A-671
 | | | Alizapride HCl C16H21N5O2.HCl M.W. 315.38 36.46 A-672
 |
| (R)-Azelastine Hydrochloride CAS No. 153408-28-7 C22H25Cl2N3O M.W. 418.36 A-681
 | | | Azelastine-d4 HCl CAS No. 79307-93-0 (non-D) C22H20ClN3OD4. HCl M.W. 385.93 36.46 A-6810
 |
| Azelastine 5-Member-Cyclic-Isomer HCl CAS No. N/A C22H24ClN3O HCl M.W. 381.91 36.46 A-6811
 | | | Azelastine 3-Chloro-Isomer HCl CAS No. N/A C22H24ClN3O HCl M.W. 381.91 36.46 A-6812
 |
| Azelastine-N-Oxide CAS No. 640279-88-5 C22H24ClN3O2 M.W. 397.91 A-6813
 | | | (S)-Azelastine Hydrochloride CAS No. 153408-27-6 C22H25Cl2N3O M.W. 418.36 A-682
 |
| Azelastine Hydrochloride CAS No. 79307-93-0 C22H25Cl2N3O M.W. 418.36 A-683
 | | | Azelastine-13C-d3 Azelastine-13C-d3 M.W. 385.91 A-684
 |
| N-Desmethyl Azelastine CAS No. 47491-38-3 C21H22ClN3O M.W. 367.88 A-685
 | | | Azelastine Hydrochloride Impurity B CAS No. 117078-69-0 C14H2lN3O.HCl M.W. 247.34 36.46 A-686
 |
| Azelastine Impurity D CAS No. 53242-89-9 C15H11ClN2O M.W. 270.72 A-687
 | | | Azelastine Impurity E C15H9ClO2 M.W. 256.69 A-688
 |
| N-Desmethyl Azelastine-d4 CAS No. N/A C21H18ClN3OD4 M.W. 371.91 A-689
 | | | Allopurinol CAS No. 315-30-0 C5H4N4O M.W. 136.11 A-691
 |
| Oxypurinol -13C, 15N2 CAS No. N/A C5H4N4O2 M.W. 155.09 A-6910
 | | | Allopurinol-d2 CAS No. 916979-34-5 C5H2N4OD2 M.W. 138.13 A-692
 |
| 4,6-Dihydroxypyrazolo[3,4-d]pyrimidine (Oxypurinol) CAS No. 2465-59-0 C5H4N4O2 M.W. 152.11 A-693
![4,6-Dihydroxypyrazolo[3,4-d]pyrimidine (Oxypurinol)](product_images/A-693.jpg) | | | Allopurinol Impurity A CAS No. 5334-31-6 C4H6N4O M.W. 126.12 A-694
 |
| Allopurinol Impurity B CAS No. 22407-20-1 C5H6N4O2 M.W. 154.13 A-695
 | | | Allopurinol Impurity C CAS No. 1346604-13-4 C6H6N6O M.W. 178.15 A-696
 |
| Allopurinol Impurity D CAS No. 6994-25-8 C6H9N3O2 M.W. 155.16 A-697
 | | | Allopurinol Impurity E CAS No. 31055-19-3 C7H9N3O3 M.W. 183.17 A-698
 |
| Allopurinol Impurity F CAS No. 321571-07-7 C12H14N4O4 M.W. 278.27 A-699
 | | | 3-Amino-2-oxazolidinone CAS No. 80-65-9 C3H6N2O2 M.W. 102.09 A-701
 |
| 3-Amino-2-oxazolidinone-d4 CAS No. 1188331-23-8 C3H2N2O2D4 M.W. 106.12 A-702
 | | | Aliskiren CAS No. 173334-57-1 C30H53N3O6 M.W. 551.77 A-711
 |
| Aliskiren-d6 CAS No. 173334-57-1 (non-d) C30H47N3O6D6 M.W. 557.81 A-712
 | | | Amorolfine HCl C21H35NO.HCl M.W. 317.52 36.46 A-731
 |
| N-[2-(acetyloxy)propyl]-N-[3-[4-(1,1-dimethylpropyl)phenyl]-2-methylpropyl]-formamide CAS No. 142347-84-0 C21H33NO3 M.W. 347.50 A-732
![N-[2-(acetyloxy)propyl]-N-[3-[4-(1,1-dimethylpropyl)phenyl]-2-methylpropyl]-formamide](product_images/A-732.jpg) | | | 4-[3-[4-(1,1-dimethylpropyl)-phenyl]-2-methylpropyl]-2,6-dimethylmorpholine 4-oxide CAS No. 78613-39-5 C21H35NO2 M.W. 333.52 A-733
![4-[3-[4-(1,1-dimethylpropyl)-phenyl]-2-methylpropyl]-2,6-dimethylmorpholine 4-oxide](product_images/A-733.jpg) |
| Apigenin-d5 CAS No. 263711-74-6 C15H5O5D5 M.W. 275.27 A-741
 | | | Cis-Atracurium Besylate C53H72N2O12. 2 C6H5O3S M.W. 929.17 2 157.17 A-751
 |
| Atracurium Impurity C1 (trans-Monoacrylate) CAS No. N/A C32H44NO8 C6H5O3S M.W. 570.71 157.17 A-7510
 | | | Atracurium Impurity C2 (cis-Monoacrylate) CAS No. N/A C32H44NO8 C6H5O3S M.W. 570.71 157.17 A-7511
 |
| Atracurium Impurity H (Mixture of cis, trans(H1), cis, cis(H2), tans, trans Isomer) CAS No. N/A C53H72N2O12 2xC6H5O3S M.W. 929.17 2x157.17 A-7512
 | | | Atracurium Impurity I (Mixture of cis, trans(I1), cis, cis(I2), tans, trans Isomer) CAS No. N/A C54H74N2O12 2xC6H5O3S M.W. 943.20 2x157.17 A-7513
 |
| Atracurium Impurity K (Mixture of cis, trans, cis, cis(K1 & K2), tans, trans Isomer) CAS No. N/A C54H74N2O12 2xC6H5O3S M.W. 943.20 2x157.17 A-7514
 | | | Atracurium Impurity D1 (trans-Quaternary Alcohol) CAS No. N/A C29H42NO7 C6H5O3S M.W. 516.66 157.17 A-752
 |
| Atracurium Impurity E (cis-Quaternary Acid) CAS No. N/A C24H32NO6 C6H5O3S M.W. 430.53 157.17 A-753
 | | | Atracurium Impurity D2 (cis-Quaternary Alcohol) CAS No. N/A C29H42NO7 C6H5O3S M.W. 516.66 157.17 A-754
 |
| Atracurium Impurity G (R-Laudanosine) CAS No. N/A C21H27NO4 M.W. 357.45 A-755
 | | | (R-trans, R-trans)-Atracurium Besylate CAS No. N/A C53H72N2O12 2xC6H5O3S M.W. 929.17 2x157.17 A-756
 |
| (R-cis, R-trans)-Atracurium Besylate CAS No. N/A C53H72N2O12 2xC6H5O3S M.W. 929.17 2x157.17 A-757
 | | | Atracurium Impurity A1 (trans-Monoquatenary) CAS No. N/A C52H69N2O12 C6H5O3S M.W. 914.14 157.17 A-758
 |
| Atracurium Impurity A2 (cis-Monoquatenary) CAS No. N/A C52H69N2O12 C6H5O3S M.W. 914.14 157.17 A-759
 | | | Aspartame Impurity B CAS No. 13433-09-5 C13H16N2O5 M.W. 280.28 A-761
 |
| Aspartame Impurity C CAS No. 150-30-1 C9H11NO2 M.W. 165.19 A-762
 | | | Aspartame-d5 CAS No. N/A C14H13N2O5D5 M.W. 299.34 A-763
 |
| Atazanavir C38H52N6O7 M.W. 704.87 A-771
 | | | Atazanavir-d6 C38H46N6O7D6 M.W. 710.91 A-772
 |
| Atazanavir Impurity 1 CAS No. 1292296-09-3 C38H52N6O7 M.W. 704.87 A-773
 | | | Atazanavir Impurity 3 C37H50N6O7 M.W. 690.85 A-774
 |
| Atazanavir Impurity 2 C37H50N6O7 M.W. 690.85 A-775
 | | | Atazanavir Sulfate C38H52N6O7. H2O4S M.W. 704.87 98.08 A-776
 |
| Ascorbyl tetraisopalmitate CAS No. 183476-82-6 C70H128O10 M.W. 1129.79 A-781
 | | | alfa-Amyrenone CAS No. 638-96-0 C30H48O M.W. 424.72 A-791
 |
| beta-Amyrenone CAS No. 638-97-1 C30H48O M.W. 424.72 A-792
 | | | Agomelatine-d6 CAS No. NA C15H11NO2D6 M.W. 249.34 A-801
 |
| Agomelatine C15H17NO2 M.W. 243.31 A-802
 | | | Agomelatine Impurity I CAS No. 1385018-58-5 C28H29NO3 M.W. 427.55 A-803
 |
| Agomelatine Impurity II C27H28N2O3 M.W. 428.54 A-804
 | | | Azacitidine CAS No. NA C8H12N4O5 M.W. 244.21 A-811
 |
| Azacitidine related compound C C7H14N4O5 M.W. 234.21 A-812
 | | | Abiraterone-d4 CAS No. NA C24H27NOD4 M.W. 353.54 A-821
 |
| Abiraterone CAS No. 154229-19-3 C24H31NO M.W. 349.52 A-822
 | | | 5a-17-(3-Pyridyl)-16-androstene-3-one CAS No. NA C24H31NO M.W. 349.52 A-823
 |
| Abiraterone Sulfate CAS No. NA C24H31NO4S M.W. 429.58 A-824
 | | | Abiraterone N-Oxide Sulfate CAS No. NA C24H31NO5S M.W. 445.58 A-825
 |
| Abiraterone-beta-D-Glucuronide CAS No. N/A C30H39NO7 M.W. 525.65 A-826
 | | | Amisulpride CAS No. 71675-85-9 C17H27N3O4S M.W. 369.49 A-831
 |
| Amisulpride N-oxide CAS No. 71676-01-2 C17H27N3O5S M.W. 385.49 A-832
 | | | Amisulpride-d5 CAS No. N/A C17H22N3O4SD5 M.W. 374.52 A-833
 |
| Amisulpride-d5 N-oxide CAS No. N/A C17H22N3O5SD5 M.W. 390.52 A-834
 | | | N-Methyl Amisulpride CAS No. N/A C18H29N3O4S M.W. 383.51 A-835
 |
| N-Methyl Amisulpride-d3 CAS No. N/A C18H26N3O4SD3 M.W. 386.53 A-836
 | | | 4-Amino-N-(1-ethyl-3-piperidinyl)-5-(ethylsulfonyl)-2-methoxybenzamide CAS No. 148516-68-1 C17H27N3O4S M.W. 369.49 A-837
 |
| Amisulpride Impurity A CAS No. N/A C7H16N2 M.W. 128.22 A-838
 | | | Azilsartan CAS No. 147403-03-0 C25H20N4O5 M.W. 456.46 A-841
 |
| Azilsartan Impurity I C23H17N3O3 M.W. 383.41 A-8410
 | | | Azilsartan Impurity J C24H18N4O5 M.W. 442.43 A-8411
 |
| Azilsartan Impurity K C23H16N4O5 M.W. 428.41 A-8412
 | | | Azilsartan Impurity E C23H21N3O2 M.W. 371.44 A-8413
 |
| Azilsartan Impurity F C23H23N3O3 M.W. 389.46 A-8414
 | | | Azilsartan Impurity G C23H24N4O3 M.W. 404.47 A-8415
 |
| Azilsartan Impurity H C23H21N4O4 M.W. 417.45 A-8416
 | | | Azilsartan Impurity N C22H17N3O4 M.W. 387.40 A-8417
 |
| Azilsartan Impurity O C23H19N3O4 M.W. 401.43 A-8418
 | | | Azilsartan-d4 CAS No. N/A C25H16N4O5D4 M.W. 460.49 A-842
 |
| Azilsartan-d5 CAS No. N/A C25H15N4O5D5 M.W. 461.49 A-843
 | | | Azilsartan Impurity A C25H24N3O4 M.W. 430.49 A-844
 |
| Azilsartan Impurity B C24H21N3O4 M.W. 415.45 A-845
 | | | Azilsartan Impurity C C24H23N4O4 M.W. 431.48 A-846
 |
| Azilsartan Impurity L C24H22N4O3 M.W. 414.47 A-847
 | | | Azilsartan Impurity M C24H19N3O3 M.W. 397.44 A-848
 |
| Azilsartan Impurity D C22H18N4O4 M.W. 402.41 A-849
 | | | Tetrahydro Aldosterone CAS No. 13489-75-3 C21H32O5 M.W. 364.49 A-851
 |
| 1-Dehydroaldosterone CAS No. 76959-24-5 C21H26O5 M.W. 358.44 A-852
 | | | Aldosterone CAS No. 52-39-1 C21H28O5 M.W. 360.45 A-853
 |
| Sodium Ethyl-d5 Sulfate CAS No. N/A C2O4SD5 Na M.W. 130.15 22.99 A-861
 | | | Ethyl D-Glucuronide CAS No. 17685-04-0 C8H14O7 M.W. 222.20 A-862
 |
| Ethyl-d5 D-Glucuronide CAS No. N/A C8H9O7D5 M.W. 227.23 A-863
 | | | Amfenac CAS No. 51579-82-9 C15H13NO3 M.W. 255.28 A-871
 |
| Amfenac-d5 CAS No. N/A C15H8NO3D5 M.W. 260.31 A-872
 | | | Amfenac Glucuronide CAS No. N/A C21H21NO9 M.W. 431.40 A-873
 |
| Amfenac Lactam CAS No. 51135-38-7 C15H11NO2 M.W. 237.26 A-874
 | | | Allopregnanolone C21H34O2 M.W. 318.50 A-891
 |
| Allopregnanolone-d4 C21H30O2D4 M.W. 322.53 A-892
 | | | Arasertaconazole CAS No. 583057-48-1 C20H15Cl3N2OS M.W. 437.78 A-901
 |
| Arasertaconazole-d3 CAS No. N/A C20H12Cl3N2OSD3 M.W. 440.80 A-902
 | | | Ametryn CAS No. 834-12-8 C9H17N5S M.W. 227.33 A-911
 |
| N2-(1-Methylethyl)-6-(methylthio)-1,3,5-triazine-2,4-diamine (GS 11354) CAS No. 4147-57-3 C7H13N5S M.W. 199.28 A-912
 | | | 6-(Methylthio)-1,3,5-triazine-2,4-diamine (GS 26831) CAS No. 5397-01-3 C4H7N5S M.W. 157.20 A-913
 |
| N2-Ethyl-6-(methylthio)-1,3,5-triazine-2,4-diamine (GS 11355) CAS No. 4147-58-4 C6H11N5S M.W. 185.25 A-914
 | | | L-Arginine L-Aspartate C6H14N4O2. C4H7NO4 M.W. 174.20 133.10 A-922
 |
| Alfuzosin Impurity C C19H27N5O4 M.W. 389.46 A-941
 | | | Alfuzosin Impurity E HCl C15H21N5O3. HCl M.W. 319.37 36.46 A-942
 |
| Alfuzosin-d3 CAS No. N/A C19H24N5O4D3 HCl M.W. 392.48 36.46 A-943
 | | | Alfuzosin Impurity D C14H21N5O2 M.W. 291.36 A-944
 |
| Aflatoxin M2 CAS No. 6885-57-0 C17H14O7 M.W. 330.30 A-951
 | | | Acedoben CAS No. 556-08-1 C9H9NO3 M.W. 179.18 A-961
 |
| Acedoben-d4 C9H5NO3D4 M.W. 183.20 A-962
 | | | Acedoben Acyl Glucuronide CAS No. 34220-56-9 C15H17NO9 M.W. 355.30 A-963
 |
| 4-Methylamino antipyrine-d3 C12H12N3OD3 M.W. 220.29 A-971
 | | | Ammelide-13C3 C3H4N4O2 M.W. 131.06 A-972
 |
| 4-Formylamino Antipyrine C12H13N3O2 M.W. 231.26 A-973
 | | | Aminoantipyrine C11H13N3O M.W. 203.25 A-974
 |
| 4-N-demethylmetamizole sodium C11H12N3O4S . Na M.W. 282.30 22.99 A-975
 | | | Dimethylaminoantipyrine C13H17N3O M.W. 231.30 A-977
 |
| 4-Methylaminoantipyrine CAS No. 519-98-2 C12H15N3O M.W. 217.27 A-978
 | | | Adrenalone HCl C9H11NO3.HCl M.W. 181.19 36.46 A-981
 |
| Allura Red AC-d3 C18H11N2Na2O8S2D3 M.W. 499.45 A-991
 | | | 19-hydroxy-4-androsten-3,17-dione CAS No. 510-64-5 C19H26O3 M.W. 302.42 H-141
 |
| Axitinib CAS No. 319460-85-0 C22H18N4OS M.W. 386.48 PF-0001
 | | | Atorvastatin CAS No. 134523-00-5 C33H35FN2O5 M.W. 558.66 PF-0011
 |