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| Lamotrigine-13C3 CAS No. 84057-84-1(non-d) C613C3H7Cl2N5 M.W. 259.07 L-011
 | | | Lamotrigine-13C-d3 C9H4Cl2N5D3 M.W. 260.10 L-012
 |
| Lamotrigine Impurity D CAS No. 661463-79-2 C9H5Cl2N3O2 M.W. 258.07 L-013
 | | | Lamotrigine Related Compound C C9H6Cl2N4O M.W. 257.08 L-014
 |
| Lamotrigine Related Compound D C16H9Cl4N5O M.W. 429.10 L-015
 | | | Lamotrigine Impurity C CAS No. N/A C9H7Cl2N5 M.W. 256.10 L-016
 |
| Lamotrigine Impurity CAS No. N/A C8H3Cl2NO M.W. 200.03 L-017
 | | | Lacidipine-d9 CAS No. 103890-78-4 C26H24NO6D9 M.W. 464.61 L-021
 |
| Lacidipine CAS No. 103890-78-4 C26H33NO6 M.W. 455.56 L-022
 | | | Lacidipine-d10 CAS No. 103890-78-4(non-d) C26H23NO6D10 M.W. 465.62 L-023
 |
| Dehydro lacidipine C26H31NO6 M.W. 453.54 L-024
 | | | cis-Lacidipine CAS No. 103890-79-5 C26H33NO6 M.W. 455.55 L-025
 |
| Lansoprazole CAS No. 103577-45-3 C16H14F3N3O2S M.W. 369.37 L-031
 | | | Lansoprazole EP Impurity C CAS No. 103577-40-8 C16H14F3N3OS M.W. 353.37 L-0311
 |
| Lansoprazole EP Impurity D CAS No. 615-16-7 C7H6N2O M.W. 134.14 L-0312
 | | | Lansoprazole EP Impurity E CAS No. 583-39-1 C7H6N2S M.W. 150.20 L-0313
 |
| Lansoprazole EP Impurity F CAS No. 168167-42-8 C14H12ClN3OS M.W. 305.79 L-0314
 | | | Lansoprazole Sulfone N-Oxide C16H14F3N3O4S M.W. 401.37 L-0315
 |
| 2-Chloromethyl-3-methyl-4-(2,2,2-trifluoroethoxy)pyridine C9H9ClF3NO M.W. 239.63 L-0316
 | | | Lansoprazole Impurity H CAS No. 1346598-28-4 C23H16F3N5OS M.W. 467.48 L-0317
 |
| Lansoprazole Impurity I CAS No. N/A C23H16F3N5OS M.W. 467.48 L-0318
 | | | Lansoprazole N-Trifuoroethyl Impurity CAS No. N/A C18H15F6N3O2S M.W. 451.39 L-0319
 |
| Lansoprazole EP Impurity B (Lansoprazole Sulfone) CAS No. 131926-99-3 C16H14F3N3O3S M.W. 385.37 L-032
 | | | Lansoprazole N-(3-Methyl-4-Trifuoroethoxyl-Pyridin-2-yl) Impurity CAS No. N/A C25H22F6N4O3S M.W. 572.53 L-0320
 |
| (R)-Lansoprazole-d4 CAS No. 1246819-33-9 C16H12F3N3O2SD4 M.W. 375.41 L-0321
 | | | 5-Hydroxy Lansoprazole CAS No. 131926-98-2 C16H14F3N3O3S M.W. 385.37 L-033
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| Lansoprazole-d4 CAS No. 103577-45-3(non-d) C16H10F3N3O2SD4 M.W. 373.39 L-034
 | | | 5-Hydroxy Lansoprazole Sulfide C16H14F3N3O2S M.W. 369.37 L-035
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| 6-Hydroxy Lansoprazole Sulfide C16H14F3N3O2S M.W. 369.37 L-036
 | | | (R)-(+)-Lansoprazole C16H14F3N3O2S M.W. 369.37 L-037
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| Lansoprazole Glucuronide CAS No. N/A C22H22F3N3O8S M.W. 545.50 L-038
 | | | Lansoprazole EP Impurity A CAS No. 213476-12-1 C16H14F3N3O3S M.W. 385.37 L-039
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| Leflunomide CAS No. 75706-12-6 C12H9F3N2O2 M.W. 270.21 L-041
 | | | Leflunomide-d4 CAS No. 75706-12-6 (non-d) C12H5F3N2O2D4 M.W. 274.24 L-042
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| 2-Cyano-3OH-N-(4-trifluoromethylphenyl) crotonamide CAS No. 163451-81-8 C12H9F3N2O2 M.W. 270.21 L-043
 | | | 2-Cyano-3OH-N-(4-trifluoromethylphenyl) crotonamide-d4 CAS No. 108605-62-5 C12H5F3N2O2D4 M.W. 274.24 L-044
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| Leflunomide Impurity E C12H9F3N2O2 M.W. 270.21 L-045
 | | | Levetiracetam CAS No. 102767-28-2 C8H14N2O2 M.W. 170.21 L-051
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| Levetiracetam-d6 CAS No. 102767-28-2(non-d) C8H8D6N2O2 M.W. 176.25 L-052
 | | | Levetiracetam Metabolite CAS No. 102849-49-0 C8H13NO3 M.W. 171.20 L-053
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| Levetiracetam Impurity B CAS No. 358629-47-7 C8H12N2O2 M.W. 168.20 L-054
 | | | Levetiracetam Impurity C CAS No. 72762-00-6 C5H5NO M.W. 95.10 L-055
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| Levetiracetam Impurity D CAS No. 103765-01-1 C8H14N2O2 M.W. 170.21 L-056
 | | | Levetiracetam Imurity (L-2-Aminobutanamide HCl,S-2-Aminobutanamide HCl) C4H10N2O.HCl M.W. 102.14 36.46 L-057
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| Levetiracetam Impurity 3 C8H15ClN2O2 M.W. 206.67 L-058
 | | | Lidocaine-d6 CAS No. 137-58-6(non-d) C14H16N2OD6 M.W. 240.38 L-061
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| Lidocaine Impurity F C14H22N2O . HCl M.W. 234.34 36.46 L-0610
 | | | Lidocaine Impurity G C13H20N2O . HCl M.W. 220.32 36.46 L-0611
 |
| Lidocaine Impurity K C13H20N2O . HCl M.W. 220.32 36.46 L-0612
 | | | Lidocaine N-Oxide C14H22N2O2 M.W. 250.34 L-0613
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| 3'-Hydroxy Lidocaine C14H22N2O2 M.W. 250.34 L-0614
 | | | Lidocaine Impurity A C8H11N M.W. 121.18 L-0615
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| Lidocaine Impurity C C10H13NO M.W. 163.22 L-0616
 | | | Lidocaine Impurity H C10H12ClNO M.W. 197.67 L-0618
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| Lidocaine Impurity I C14H22N2O M.W. 234.34 L-0619
 | | | Monoethylglycinexylidide HCl (Impurity D) CAS No. 7728-40-7 C12H18N2O.HCl M.W. 206.29 36.46 L-062
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| Lidocaine Impurity J C14H22N2O M.W. 234.34 L-0620
 | | | Monoethylglycinexylidide -d6 CAS No. 7728-40-7(non-d) C12H12N2OD6 M.W. 212.33 L-063
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| Glycinexylidide HCl CAS No. 18865-38-8 C10H14N2O.HCl M.W. 178.24 36.46 L-064
 | | | Glycinexylidide-d6 CAS No. 18865-38-8(non-d) C10H8N2OD6 M.W. 184.27 L-065
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| Lidocaine-d10 CAS No. 137-58-6 (non-d) C14H12N2OD10 M.W. 244.40 L-066
 | | | 2,6-Xylidine-d6 HCl C8H5ND6. HCl M.W. 127.22 36.46 L-067
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| Lidocaine Impurity B C14H22N2O2 M.W. 250.34 L-068
 | | | Lidocaine Impurity E C20H25N3O2 . HCl M.W. 339.44 36.46 L-069
 |
| Linezolid-d3 CAS No. 165800-03-3 C16H17FN3O4D3 M.W. 340.37 L-071
 | | | Thio Linezolid (Linezolid Related Compound B) CAS No. N/A C16H20FN3O3S M.W. 353.42 L-0710
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| Linezolid Related Compound A CAS No. 168828-84-0 C14H16FN5O3 M.W. 321.31 L-0711
 | | | Linezolid Related Compound C CAS No. 168828-90-8 C14H18FN3O3 M.W. 295.32 L-0712
 |
| Defluoro Linezolid CAS No. 556801-15-1 C16H21N3O4 M.W. 319.36 L-0713
 | | | Linezolid Impurity D HCl CAS No. 1391068-25-9 C15H22FN3O3. HCl M.W. 311.36 36.46 L-0714
 |
| Linezolid Dimer CAS No. 908143-04-4 C30H35F2N5O7 M.W. 615.64 L-0715
 | | | R-Linezolid-d3 C16H17FN3O4D3 M.W. 340.37 L-0716
 |
| Linezolid Impurity (N,O-Desethylene Linezolid) CAS No. 1219708-30-1 C14H18FN3O4 M.W. 311.32 L-0717
 | | | Linezolid-13C-d3 CAS No. 165800-03-3 C1513CH17D3FN3O4 M.W. 341.36 L-072
 |
| Linezolid CAS No. 165800-03-3 C16H20FN3O4 M.W. 337.35 L-073
 | | | Linezolid-13C2-d3 C16H17FN3O4D3 M.W. 342.35 L-074
 |
| Benzyl 3-Fluoro-4-(4-morpholinyl)phenyl)carbamate CAS No. 168828-81-7 C18H19FN2O3 M.W. 330.36 L-076
 | | | (5R)-3-[3-Fluoro-4-(4-morpholinyl)phenyl]-5-hydroxymethyl-2-oxazolidinone CAS No. 168828-82-8 C14H17FN2O4 M.W. 296.30 L-077
![(5R)-3-[3-Fluoro-4-(4-morpholinyl)phenyl]-5-hydroxymethyl-2-oxazolidinone](product_images/L-077.jpg) |
| R-Linezolid CAS No. 872992-20-6 C16H20FN3O4 M.W. 337.35 L-078
 | | | Linezolid Impurity PNU140155 C15H22FN3O3 M.W. 311.36 L-079
 |
| Lisinopril-d5 CAS No. 83915-83-7 C21H26N3O5D5 M.W. 410.53 L-081
 | | | Lisinopril C21H31N3O5 M.W. 405.50 L-082
 |
| Lisinopril Impurity A CAS No. NA C10H13NO2 M.W. 179.22 L-083
 | | | Lisinopril Impurity D CAS No. NA C21H29N3O4 M.W. 387.48 L-085
 |
| Lisinopril Impurity E CAS No. NA C21H31N3O5 M.W. 405.50 L-086
 | | | Lisinopril Impurity F CAS No. NA C21H37N3O5 M.W. 411.55 L-087
 |
| Lisinopril CPP Lysine Impurity C16H24N2O4 M.W. 308.38 L-088
 | | | Lisinopril Impurity H (Dimer Impurity) CAS No. N/A C37H53N5O8 M.W. 695.86 L-089
 |
| Loxapine CAS No. 54810-23-0 C18H18ClN3O M.W. 327.82 L-089001
 | | | Loxapine-d8 CAS No. 54810-23-0(non-d) C18H10ClN3OD8 M.W. 335.86 L-089002
 |
| Loxapine N+-Glucuronide C24H27ClN3O7 M.W. 504.95 L-089003
 | | | Loxapine N-Oxide C18H18ClN3O2 M.W. 343.82 L-089004
 |
| Lurasidone Hydrochloride CAS No. 367514-88-3 C28H36N4O2S M.W. 492.69 L-090001
 | | | Lurasidone-d8 C28H28N4O2SD8 M.W. 500.74 L-090002
 |
| Lurasidone Inactive Metabolite 14283 C28H36N4O3S M.W. 508.69 L-090003
 | | | Lurasidone Inactive Metabolite 14326 C28H36N4O3S M.W. 508.69 L-090004
 |
| Lurasidone Inactive Metabolite 14283-d8 CAS No. N/A C28H28N4O3SD8 M.W. 516.74 L-090005
 | | | Lurasidone Inactive Metabolite 14326-d8 CAS No. N/A C28H28N4O3SD8 M.W. 516.74 L-090006
 |
| Loperamide HCl CAS No. 34552-83-5 C29H33ClN2O2.HCl M.W. 513.51 L-091
 | | | Lapachol CAS No. 84-79-7 C15H14O3 M.W. 242.28 L-091001
 |
| Desmethyl loperamide HCl CAS No. 66164-07-6 C28H31ClN2O2.HCl M.W. 499.48 L-092
 | | | 2’-O-Methyl Lactose CAS No. 77667-98-2 C13H24O11 M.W. 356.33 L-092001
 |
| Loperamide-d6 HCl CAS No. 34552-83-5 (non-d) C29H27ClN2O2D6 M.W. 483.09 L-093
 | | | Lincomycin B HCl CAS No. 11021-35-5 C17H32N2O6S HCl M.W. 392.52 36.46 L-093001
 |
| epi-Lincomycin-2,7-dipalmitate C51H95NO8S M.W. 882.39 L-093002
 | | | Lincomycin-2,7-dipalmitate C51H95NO8S M.W. 882.39 L-093003
 |
| Loperamide N-Oxide C29H33ClN2O3 M.W. 493.05 L-094
 | | | Loperamide Impurity A CAS No. N/A C35H37ClN2O2 M.W. 553.15 L-095
 |
| Loratadine (Desloratadine Impurity E) CAS No. 79794-75-5 C22H23ClN2O2 M.W. 382.89 L-101
 | | | 3-Hydroxy Desloratadine Pyridine N-oxide C19H19ClN2O2 M.W. 342.83 L-1010
 |
| 3-Hydroxy desloratadine-d4 C19H15ClN2OD4 M.W. 330.85 L-1011
 | | | 5-Hydroxy desloratadine C19H19ClN2O M.W. 326.83 L-1012
 |
| 6-Hydroxy desloratadine C19H19ClN2O M.W. 326.83 L-1013
 | | | 3-Hydroxy Desloratadine C19H19ClN2O M.W. 326.83 L-1014
 |
| Desloratadine Pyridine N-Oxide CAS No. 169253-26-3 C19H19ClN2O M.W. 326.83 L-1015
 | | | Desloratadine Impurity 1 C19H19ClN2 M.W. 310.83 L-1016
 |
| Desloratadine Impurity 2 CAS No. 117811-13-9 C19H19ClN2 M.W. 310.83 L-1017
 | | | Desloratadine Impurity 3 C19H19ClN2 M.W. 310.83 L-1018
 |
| Desloratadine Impurity 4 C20H21ClN2 M.W. 324.86 L-1019
 | | | Desloratadine CAS No. 100643-71-8 C19H19ClN2 M.W. 310.83 L-102
 |
| Desloratadine Impurity 5 CAS No. 38092-88-5 C20H21ClN2 M.W. 324.86 L-1020
 | | | Desloratadine Impurity 6 CAS No. 38092-90-9 C20H21ClN2 M.W. 324.86 L-1021
 |
| Loratadine Impurity C CAS No. NA C14H10ClNO M.W. 243.69 L-1022
 | | | Loratadine Impurity D CAS No. NA C20H23ClN2O M.W. 342.87 L-1023
 |
| Loratadine Impurity E CAS No. NA C14H9Cl2NO M.W. 278.14 L-1024
 | | | Loratadine Impurity F CAS No. NA C22H25ClN2O3 M.W. 400.91 L-1025
 |
| Loratadine Impurity G CAS No. NA C22H22Cl2N2O2 M.W. 417.34 L-1026
 | | | N-Formyl Desloratadine (Desloratadine Impurity D) C20H19ClN2O M.W. 338.84 L-1027
 |
| Methyl Loratadine C20H21ClN2 M.W. 324.86 L-1028
 | | | Iso Desloratadine CAS No. 183198-49-4 C19H19ClN2 M.W. 310.83 L-1029
 |
| Loratadine-d5 CAS No. 79794-75-5(non-d) C22H18D5ClN2O2 M.W. 387.92 L-103
 | | | (11RS)-8-Chloro-11-Fluoro-11-(Piperidin-4-yl)-6,11-Dihydro-5H-Benzo(5,6)cyclohepta(1,2-b)Pyridine CAS No. N/A C19H20ClFN2 M.W. 330.84 L-1030
 |
| Desloratadine N-Hydroxy Impurity CAS No. 11937-73-3 C19H19ClN2O M.W. 326.83 L-1032
 | | | Desloratadine Impurity CAS No. N/A C25H25ClN2O6 M.W. 484.94 L-1033
 |
| Desloratadine Impurity A CAS No. N/A C19H20N2 M.W. 276.38 L-1034
 | | | Desloratadine Impurity B CAS No. N/A C19H19BrN2 M.W. 355.28 L-1035
 |
| Desloratadine Impurity C CAS No. N/A C19H17ClN2 M.W. 308.81 L-1036
 | | | Loratadine Fluoro Impurity CAS No. N/A C19H20ClFN2 M.W. 330.84 L-1037
 |
| 4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbonyl]-1-piperidinecarboxylic Acid CAS No. 107256-32-6 C20H21ClN2O3 M.W. 372.85 L-1038
![4-[[3-[2-(3-Chlorophenyl)ethyl]-2-pyridinyl]carbonyl]-1-piperidinecarboxylic Acid](product_images/L-1038.jpg) | | | 11-Fluoro Desloratadine CAS No. 298220-99-2 C19H20ClFN2 M.W. 330.84 L-1039
 |
| Descarboethoxy loratadine-d5 CAS No. 79794-75-5(non-d) C19H14D5ClN2.HCl M.W. 315.86 L-104
 | | | 3-Hydroxy desloratadine HCl CAS No. 19410-08-1 C19H19ClN2O.HCl M.W. 326.83 36.46 L-105
 |
| 4-Hydroxymethyl loratadine C23H2ClN2O3 M.W. 412.91 L-106
 | | | 3-Hydroxy desloratadine glucuronide CAS No. 774538-89-5 C25H27ClN2O7 M.W. 502.96 L-107
 |
| 2-Hydroxymethyl loratadine C23H2ClN2O3 M.W. 412.91 L-108
 | | | Losartan potassium salt CAS No. 124750-99-8 C22H22ClKN6O M.W. 461.01 L-111
 |
| Losartan Impurity J CAS No. 1006062-27-6 C24H25ClN6O2 M.W. 464.96 L-1110
 | | | Losartan Impurity K CAS No. 1159977-26-0 C21H20Cl2N6 M.W. 427.34 L-1111
 |
| Losartan N1-Glucuronide C28H31ClN6O7 M.W. 599.05 L-1113
 | | | Losartan Carboxylic Acid Acyl-Beta-D-Glucuronide CAS No. N/A C29H31ClN6O7 M.W. 611.06 L-1114
 |
| Losartan Related Compound A CAS No. N/A C22H20ClN3O M.W. 377.88 L-1115
 | | | Losartan Related Compound B CAS No. N/A C22H22ClN3O M.W. 379.89 L-1116
 |
| Losartan Impurity C (Isolosartan) CAS No. N/A C22H23ClN6O M.W. 422.92 L-1117
 | | | Losartan Impurity (5-(4'-Methylbiphenyl-2-yl)-1-Trityl-1H-Tetrazole) CAS No. 124750-53-4 C33H26N4 M.W. 478.60 L-1118
 |
| N-Trithyl Losartan CAS No. 124751-00-4 C41H37ClN6O M.W. 665.24 L-1119
 | | | Losartan Carboxylic Acid CAS No. 124750-92-1 C22H21ClN6O2 M.W. 436.90 L-112
 |
| Losartan-d4 CAS No. 124750-99-8(non-d) C22H19D4ClN6O M.W. 425.94 L-113
 | | | Losartan carboxy acid - d4 CAS No. 124750-92-1(non-d) C22H19D4ClN6O2 M.W. 439.92 L-114
 |
| Losartan N2-glucuronide C28H31ClN6O7 M.W. 599.05 L-115
 | | | Losartan Potassium Impurity L CAS No. 230971-71-8 C44H44Cl2N12O M.W. 827.83 L-116
 |
| Losartan Potassium Impurity M CAS No. 230971-72-9 C44H44Cl2N12O M.W. 827.83 L-117
 | | | Losartan Impurity G CAS No. 165276-38-0 C22H21ClN6 M.W. 404.91 L-119
 |
| Lovastatin hydroxy acid sodium salt CAS No. 75225-51-3 C24H37O6.Na M.W. 444.55 L-121
 | | | Lovastatin Impurity F C24H34O5 M.W. 402.54 L-1210
 |
| Des(2-methylbutyrate) lovastatin hydroxy acid sodium salt CAS No. 75225-51-3 C19H29O5.Na M.W. 360.43 L-122
 | | | Lovastatin-d3 hydroxy acid sodium salt CAS No. 75225-51-3(non-d) C24H34O6D3.Na M.W. 447.55 L-123
 |
| Lovastatin-d9 C24H27O5D9 M.W. 413.61 L-124
 | | | Lovastatin-d9 hydroxy acid sodium salt C24H28O6D9.Na M.W. 430.61 22.99 L-125
 |
| Lovastatin-d3 C24H33O5D3 M.W. 407.5 L-126
 | | | Lovastatin C24H36O5 M.W. 404.55 L-127
 |
| Hydroxy Lovastatin CAS No. N/A C24H36O7 M.W. 436.55 L-128
 | | | Lovastatin Dimer C48H72O10 M.W. 809.10 L-129
 |
| Levocetirizine-d4 CAS No. 130018-77-8 C21H21ClN2O3D4 M.W. 392.92 L-131
 | | | 4-Chlorobenzhydrylimine CAS No. NA C13H10ClN M.W. 215.68 L-132
 |
| 2-Chlorobenzhydryl amine CAS No. 5267-39-0 C13H12ClN M.W. 217.70 L-133
 | | | N-Benzyl-2-chloro-N(chloroacetyl)acetamide CAS No. NA C11H11Cl2NO2 M.W. 260.12 L-134
 |
| [2-[4-[4-chlorophenylmethyl]-1-piperazinyl]-ethoxy]acetamide CAS No. NA C15H22ClN3O2 M.W. 311.81 L-135
![[2-[4-[4-chlorophenylmethyl]-1-piperazinyl]-ethoxy]acetamide](product_images/L-135.jpg) | | | 1-Benzylaziridin-2-one CAS No. NA C9H9NO M.W. 147.18 L-136
 |
| 2-(p-Chlorobenzhydryl piperazine)-[(N,N'-bis(2-ethoxy acetic acid)] CAS No. NA C25H32ClN2O6 M.W. 492.00 L-137
![2-(p-Chlorobenzhydryl piperazine)-[(N,N'-bis(2-ethoxy acetic acid)]](product_images/L-137.jpg) | | | Levocetetrizine N-Oxide CAS No. NA C21H25ClN2O4 M.W. 404.90 L-138
 |
| levocetirizine Impurity C17H19ClN2 M.W. 286.81 L-139
 | | | Linuron-d6 CAS No. 330-55-2 (non-d) C9H4Cl2N2O2D6 M.W. 255.13 L-151
 |
| Letrozole-d4 CAS No. 112809-51-5 (non-d) C17H7N5D4 M.W. 289.33 L-161
 | | | Carbinol Metabolite of Letrozole C15H10N2O M.W. 234.26 L-162
 |
| Letrozole C17H11N5 M.W. 285.31 L-163
 | | | Letrozole Related Compound A CAS No. NA C17H11N5 M.W. 285.31 L-164
 |
| Letrozole Impurity B CAS No. N/A C22H13N3 M.W. 319.39 L-165
 | | | R-Lercanidipine C36H41N3O6 M.W. 611.74 L-171
 |
| Lercanidipine Impurity A C19H22N2O6 M.W. 374.40 L-1710
 | | | Lercanidipine Impurity C21H26N2O6 M.W. 402.45 L-1712
 |
| Lercanidipine Dimethyl Ester Impurity CAS No. N/A C17H18N2O6 M.W. 346.34 L-1713
 | | | Lercanidipine Ethyl Methyl Ester Impurity (Impurity 5) CAS No. 39562-70-4 C18H20N2O6 M.W. 360.37 L-1714
 |
| Lercanidipine Ethyl Impurity (Impurity 4) CAS No. N/A C37H43N3O6 M.W. 625.77 L-1715
 | | | R-Lercanidipine-d3 C36H38D3N3O6 M.W. 614.74 L-172
 |
| S-Lercanidipine C36H41N3O6 M.W. 611.74 L-173
 | | | S-Lercanidipine-d3 C36H38N3O6 M.W. 614.74 L-174
 |
| Lercanidipine Impurity D HCl (Dehydro Lercanidipine HCl) C36H39N3O6.HCl M.W. 609.73 36.46 L-175
 | | | Lercanidipine HCl C36H41N3O6.HCl M.W. 611.74 36.46 L-176
 |
| Lercanidipine Impurity B C35H37N3O6 M.W. 595.70 L-177
 | | | Lercanidipine-13C-d3 HCl C35H38N3O613CD3. HCl M.W. 615.75 36.46 L-178
 |
| Lercanidipine Impurity C C38H45N3O6 M.W. 639.80 L-179
 | | | Lithocholic-2,2,3,4,4-d5 Acid CAS No. 434-13-9 (non-d) C24H35O3D5 M.W. 381.61 L-181
 |
| Lithocholic-2,2,4,4-d4 Acid CAS No. 434-13-9 (non-d) C24H36O3D4 M.W. 380.61 L-182
 | | | Taurolithocholic-2,2,3,4,4-D5 Acid C26H40NO5SD5 M.W. 488.75 L-183
 |
| Taurolithocholic-2,2,4,4-D4 Acid C26H41NO5SD4 M.W. 487.75 L-184
 | | | Lasofoxifene CAS No. 180916-16-9 C28H31NO2 M.W. 413.56 L-191
 |
| Lasofoxifene-d4 CAS No. 180916-16-9 (non-d) C28H27NO2D4 M.W. 417.59 L-192
 | | | Lasofoxifene glucuronide C34H39NO8 M.W. 589.69 L-193
 |
| rac-Lasofoxifene-d5 C28H26NO2D5 M.W. 418.59 L-194
 | | | Lamivudine-13C-d2 CAS No. 134678-17-4 C8H9N3O3SD2 M.W. 232.26 L-201
 |
| Lamivudine-13C-15N2 C8H11N3O3S M.W. 232.23 L-202
 | | | Lamivudine CAS No. 134678-17-4 C8H11N3O3S M.W. 229.26 L-203
 |
| Lamivudine Impurity B C8H11N3O3S M.W. 229.26 L-204
 | | | Lubiprostone CAS No. 333963-40-9 C20H32F2O5 M.W. 390.47 L-211
 |
| Lubiprostone-d4 CAS No. 333963-40-9 (non-d) C20H28F2O5D4 M.W. 394.50 L-212
 | | | 15-Hydroxy lubiprostone-mixture of isomers C20H34F2O5 M.W. 392.49 L-213
 |
| 15-Hydroxy lubiprostone-d4 C20H30F2O5D4 M.W. 396.51 L-214
 | | | Lubiprostone CAS No. 136790-76-6 C20H32F2O5 M.W. 390.47 L-215
 |
| Lubiprostone-d7 CAS No. 333963-40-9 (non-d) C20H25F2O5D7 M.W. 397.51 L-216
 | | | Levonorgestrel Sulfate Sodium Salt C21H27O5S.Na M.W. 391.51 22.99 L-221
 |
| Levonorgestrel Impurity P CAS No. 100021-05-4 C21H28O2 M.W. 312.46 L-2210
 | | | Levonorgestrel Impurity C C23H28O M.W. 320.48 L-2211
 |
| Levonorgestrel Impurity M C21H26O2 M.W. 310.44 L-2212
 | | | Aromatic levonorgestrel C22H28O2 M.W. 324.47 L-2213
 |
| Delta1 (10)-4, 5-dihydro-levonorgestrel C21H28O2 M.W. 312.46 L-2214
 | | | Levonorgestrel Impurity A C21H26O2 M.W. 310.44 L-2215
 |
| Levonorgestrel Impurity S CAS No. N/A C22H30O2 M.W. 326.48 L-2216
 | | | Levonorgestrel Impurity O C22H32O3 M.W. 344.50 L-2217
 |
| Levonorgestrel Impurity L (18-Methylester-4-ene-3,17-dione) CAS No. 21800-83-9 C19H26O2 M.W. 286.42 L-2218
 | | | Levonorgestrel Impurity B C21H28O2 M.W. 312.46 L-2219
 |
| Levonorgestrel-d6 ((-)-Norgestrel-2,2,4,6,6,10-d6) CAS No. 6533-00-2 (non-d) C21H22O2D6 M.W. 318.49 L-222
 | | | 10-alpha-Hydroxy Levonorgestrel C21H28O3 M.W. 328.46 L-2220
 |
| Levonorgestrel Impurity V C22H28O2 M.W. 324.47 L-2221
 | | | Levonorgestrel Impurity W C21H24O2 M.W. 308.42 L-2222
 |
| Levonorgestrel Impurity R CAS No. 2322-77-2 C20H28O2 M.W. 300.44 L-2223
 | | | Levonorgestrel Impurity Q CAS No. 1038-28-4 C20H30O2 M.W. 302.46 L-2224
 |
| Levonorgestrel Impurity T CAS No. 799-43-9 C22H30O2 M.W. 326.48 L-2225
 | | | Delta-5(10)-8-alfa-Levonorgestrel CAS No. N/A C21H28O2 M.W. 312.46 L-2226
 |
| 6-Keto Levonorgestrel CAS No. 1175109-63-3 C21H26O3 M.W. 326.44 L-2227
 | | | Norgestrel C21H28O2 M.W. 312.46 L-223
 |
| 10-beta-Hydroxy Levonorgestrel CAS No. 21508-50-9 C21H28O3 M.W. 328.46 L-224
 | | | 6-alfa-Hydroxy Levonorgestrel C21H28O3 M.W. 328.46 L-225
 |
| Levonorgestrel Impurity H (6-beta-Hydroxy Levonorgestrel) C21H28O3 M.W. 328.46 L-226
 | | | Levonorgestrel Impurity N CAS No. 4222-96-2 C19H26O2 M.W. 286.42 L-229
 |
| Levofloxacin C18H20FN3O4 M.W. 361.38 L-231
 | | | Levofloxacin Related Compound C C20H24FN3O4 M.W. 389.43 L-2310
 |
| Levofloxacin-d8 CAS No. 1217716-71-6 C18H12FN3O4D8 M.W. 369.42 L-2311
 | | | Levofloxacin Diformyl Impurity CAS No. 151377-74-1 C18H18FN3O6 M.W. 391.36 L-2312
 |
| Levofloxacin N-oxide C18H20FN3O5 M.W. 377.38 L-2313
 | | | Levofloxacin-Acyl-D-Glucuronide CAS No. 160962-46-9 C24H28FN3O10 M.W. 537.50 L-2314
 |
| 9-Piperazine Levofloxacin Impurity CAS No. 178912-62-4 C18H20FN3O4 M.W. 361.38 L-2315
 | | | Levofloxacin Related Compound B C13H9F2NO4 M.W. 281.22 L-232
 |
| N-Desmethyl Levofloxacin (Levofloxacin Related Compound A) C18H20FN3O4 M.W. 347.35 L-233
 | | | N-Desmethyl Levofloxacin-d8 C17H10FN3O4D8 M.W. 1071-083A1 L-234
 |
| Levofloxacin-13C-d3 C17H17FN3O413CD3 M.W. 365.38 L-235
 | | | Defluoro Levofloxacin CAS No. 117620-85-6 C18H21N3O4 M.W. 343.39 L-236
 |
| N,N’-Desethylene Levofloxacin C16H19N3O4 M.W. 317.35 L-237
 | | | Levofloxacin Diamine C15H16FN3O4 M.W. 321.31 L-238
 |
| (R)-Levofloxacin C18H20FN3O4 M.W. 361.38 L-239
 | | | Lomerizine diHCl C27H30F2N2O3.2 HCl M.W. 468.55 2 36.46 L-241
 |
| Lomerizine-d8 diHCl C27H22F2N2O3D8.2 HCl M.W. 476.60 2 36.46 L-242
 | | | Lapatinib C29H26ClFN4O4S M.W. 581.07 L-251
 |
| Lapatinib Impurity 9 CAS No. N/A C26H17ClFN3O3 M.W. 473.90 L-2510
 | | | Lapatinib Impurity 10 CAS No. N/A C26H17ClFN3O4 M.W. 489.89 L-2511
 |
| Lapatinib-d5 C29H21ClFN4O4SD5 M.W. 586.10 L-252
 | | | Lapatinib-d4 Ditosylate C29H22ClFN4O4SD4 2C7H8O3S M.W. 585.09 2 172.20 L-253
 |
| O-De(3-fluorobenzyl) Lapatinib Ditosylate Salt C22H21ClN4O4S . 2 C7H8O3S M.W. 472.95 2 172.20 L-254
 | | | Lapatinib Ditosylate CAS No. 388082-78-8 C29H26ClFN4O4S . 2 C7H8O3S . H2O M.W. 581.07 2 172.20 18.02 L-255
 |
| Lapatinib Impurity 1 CAS No. 1268997-70-1 C22H21ClN4O4S M.W. 472.95 L-256
 | | | Lapatinib Impurity 2 CAS No. N/A C29H24ClFN4O4S M.W. 579.05 L-257
 |
| Lapatinib Impurity 3 CAS No. N/A C26H20ClFN4O2 M.W. 474.93 L-258
 | | | Lapatinib Impurity 8 CAS No. N/A C26H19ClFN3O3 M.W. 475.91 L-259
 |
| Lenalidomide CAS No. 191732-72-6 C13H13N3O3 M.W. 259.27 L-261
 | | | Lenalidomide-d5 CAS No. 191732-72-6 (non-d) C13H8N3O3D5 M.W. 264.35 L-262
 |
| Lumiracoxib-acyl-β-D-glucuronide C21H21Cl2NO8 M.W. 486.31 L-271
 | | | Lumiracoxib CAS No. 220991-20-8 C15H13ClFNO2 M.W. 293.73 L-272
 |
| Lacosamide CAS No. 175481-36-4 C13H18N2O3 M.W. 250.30 L-281
 | | | LAC2-IBCA C16H24N2O4 M.W. 308.38 L-2810
 |
| LAC2 NMBA Impurity C14H20N2O3 M.W. 264.33 L-2811
 | | | (S)-Lacosamide C13H18N2O3 M.W. 250.30 L-2812
 |
| Lacosamide-d3 CAS No. 175481-36-4 (non-d) C13H15N2O3D3 M.W. 253.36 L-282
 | | | Lacosamide-d3 C13H15N2O3D3 M.W. 253.32 L-283
 |
| N-Desacetyl Lacosamide HCl C11H16N2O2.HCl M.W. 208.26 36.46 L-284
 | | | Lacosamide-d6 C13H12N2O3D6 M.W. 256.34 L-285
 |
| Benzylamine CAS No. 100-46-9 C7H9N M.W. 107.16 L-286
 | | | Desmethyl Lacosamide CAS No. 175481-38-6 C12H16N2O3 M.W. 236.27 L-287
 |
| O-Acetyl Lacosamide CAS No. N/A C14H18N2O4 M.W. 278.31 L-288
 | | | Desacetyl Desmethyl Lacosamide CAS No. N/A C10H14N2O2 M.W. 194.24 L-289
 |
| Lumenfantrine CAS No. 82186-77-4 C30H32Cl3NO M.W. 528.95 L-291
 | | | Lumenfantrine-d9 CAS No. 82186-77-4 (non-d) C30H23Cl3NOD9 M.W. 538.01 L-292
 |
| Lumenfantrine glucuronide (mixture of diasteromers) C36H40Cl3NO7 M.W. 705.08 L-293
 | | | N-Desbutyl Lumefantrine C26H24Cl3NO M.W. 472.85 L-294
 |
| Lumenfantrine Impurity A CAS No. NA C30H32Cl3NO M.W. 528.95 L-295
 | | | Keto Impurity CAS No. NA C23H27Cl2NO2 M.W. 420.38 L-296
 |
| 2-(2,7-Dichloro-9H-fluoren-4-yl)oxirane CAS No. N/A C15H10Cl2O M.W. 277.15 L-297
 | | | 2-(Dibutylamino)-1-(2,7-dichloro-9H-fluoren-4-yl)ethanol CAS No. N/A C23H29Cl2NO M.W. 406.40 L-298
 |
| Lopinavir C37H48N4O5 M.W. 628.82 L-301
 | | | Lopinavir-d8 C37H40N4O5D8 M.W. 636.87 L-302
 |
| Lopinavir Impurity S CAS No. N/A C47H58N4O7 M.W. 791.01 L-303
 | | | Lopinavir Impurity T CAS No. N/A C57H66N4O7 M.W. 919.18 L-304
 |
| Lopinavir Metabolite M1 CAS No. 192725-39-6 C37H46N4O6 M.W. 642.80 L-305
 | | | Lopinavir Metabolite M3-M4 CAS No. 357275-54-8 C37H48N4O6 M.W. 644.82 L-306
 |
| Lopinavir Impurity R C47H58N4O7 M.W. 791.01 L-307
 | | | 12-Hydroxy Lauric Acid-d20 CAS No. 505-95-3 (non-d) C12H4O3D20 M.W. 236.44 L-311
 |
| 12-Hydroxy Lauric Acid C12H24O3 M.W. 216.32 L-312
 | | | Latanoprost CAS No. 130209-82-4 C26H40O5 M.W. 432.61 L-321
 |
| 15-Keto Latanoprost Acid C23H32O5 M.W. 388.51 L-3210
 | | | Latanoprost Impurity (Diphenylphosphine Isopropyl Ester) CAS No. N/A C20H25O3P M.W. 344.39 L-3211
 |
| 9-Acetyl Latanoprost CAS No. N/A C28H42O6 M.W. 474.64 L-3212
 | | | 15(S)-Latanoprost CAS No. 145773-22-4 C26H40O5 M.W. 432.61 L-322
 |
| 5-trans-Latanoprost C26H40O5 M.W. 432.60 L-3222
 | | | 15-Keto Latanoprost C26H38O5 M.W. 430.59 L-323
 |
| 5,6-trans-Latanoprost (50.0 mg in 5.0 ml methyl acetate) C26H40O5 M.W. 432.61 L-324
 | | | trans (15S)-Latanoprost CAS No. trans (15S)-Latanoprost C26H40O5 M.W. 432.61 L-325
 |
| Latanoprost acid CAS No. 41639-83-2 C23H34O5 M.W. 390.52 L-326
 | | | 15(R)-trans-Latanoprost (10.0 mg in 1.0 ml methyl acetate) C26H40O5 M.W. 432.61 L-328
 |
| Latanoprost Epoxide (mixture of isomers) C26H40O6 M.W. 448.61 L-329
 | | | Lupeol C30H50O M.W. 426.73 L-331
 |
| Levosulpiride C15H23N3O4S M.W. 341.43 L-341
 | | | Levosulpiride-d3 C15H20D3N3O4S M.W. 344.44 L-342
 |
| Lornoxicam C13H10ClN3O4S2 M.W. 371.82 L-351
 | | | Lornoxicam Impurity 1 C12H8ClN3O6S3 M.W. 421.86 L-352
 |
| Lornoxicam Impurity 2 C12H10ClN3O5S3 M.W. 407.88 L-353
 | | | Luliconazole CAS No. 187164-19-8 Luliconazole M.W. 354.28 L-361
 |
| Laropiprant CAS No. 571170-77-9 C21H19ClFNO4S M.W. 435.91 L-371
 | | | Laropiprant-d4 CAS No. 1132664-22-2 C21H15ClFNO4SD4 M.W. 439.96 L-372
 |
| R-Laropiprant C21H19ClFNO4S M.W. 435.91 L-373
 | | | S-Laropiprant C21H19ClFNO4S M.W. 435.91 L-374
 |
| Levomefolate-d4 C20H21N7O6D4 M.W. 463.49 L-381
 | | | Levomefolate C20H25N7O6 M.W. 459.47 L-382
 |
| Levomefolate-d5 C20H20N7O6D5 M.W. 464.50 L-383
 | | | Levomefolate-13C-d3 C20H22N7O6D3 M.W. 463.47 L-384
 |
| Calcium Levomefolate (L-5-Methyltetrahydrofolate Calcium Salt.5H2O) C20H23N7O6.Ca.5 H2O M.W. 457.45 40.08 5 18.02 L-385
 | | | Loteprednol CAS No. 129260-79-3 C21H27ClO5 M.W. 394.90 L-391
 |
| Loteprednol Etabonate CAS No. 82034-46-6 C24H31ClO7 M.W. 466.96 L-392
 | | | Loteprednol Etabonate-d3 C24H28ClO7D3 M.W. 469.98 L-393
 |
| Loteprednol Etabonate-d5 C24H26ClO7D5 M.W. 471.99 L-394
 | | | Leuprolide Acetate (Leuprorelin Acetate) CAS No. 74381-53-6 C59H84N16O12.C2H4O2 M.W. 1269.48 L-411
 |
| Leuprolide-d5 C59H79N16O12D5 M.W. 1214.46 L-412
 | | | Levosimendan C14H12N6O M.W. 280.29 L-421
 |
| Linagliptin CAS No. 668270-12-0 C25H28N8O2 M.W. 472.55 L-441
 | | | Linagliptin-d3 CAS No. N/A C25H25N8O2D3 M.W. 475.57 L-442
 |
| Levomedetomidine HCl CAS No. 119717-21-4 C13H17N2Cl M.W. 236.75 L-451
 | | | Levomedetomidine C13H16N2 M.W. 200.29 L-452
 |
| Levothyroxine-13C6 C15H11I4NO4 M.W. 782.81 L-4601
 | | | Levothyroxine acyl glucuronide C21H19I4NO10 M.W. 953.00 L-4602
 |
| Levothyroxine phenolic glucuronide C21H19I4NO10 M.W. 953.00 L-4603
 | | | Levothyroxine sulfate C15H11I4NO7S M.W. 856.94 L-4604
 |
| O-(4-Hydroxy-3,5-diiodophenyl)-3,5-diiodo-hydroxy-l-tyrosine C15H11I4NO5 M.W. 792.88 L-4605
 | | | 2-Hydroxy-2-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetic acid C14H8I4O5 M.W. 763.83 L-4606
 |
| N-Formyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-l-tyrosine C16H11I4NO5 M.W. 804.89 L-4607
 | | | 2-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetamide C14H9I4NO3 M.W. 746.85 L-4608
 |
| N-Acetyl-O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-l-tyrosine C17H13I4NO5 M.W. 818.91 L-4609
 | | | 2-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetic acid C14H8I4O4 M.W. 747.84 L-4610
 |
| 4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodobenzaldehyde C13H6I4O3 M.W. 717.81 L-4611
 | | | 4-(4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodobenzoic acid C13H6I4O4 M.W. 733.81 L-4612
 |
| Lafutidine CAS No. 118288-08-7 C22H29N3O4S M.W. 431.56 L-471
 | | | Lafutidine Impurity A C6H5NO3 M.W. 139.11 L-472
 |
| Lafutidine Impurity B C22H29N3O5S M.W. 447.56 L-473
 | | | Lafutidine Impurity C C15H23N3O M.W. 261.37 L-474
 |
| Lafutidine Impurity D C22H31N3O5S M.W. 449.57 L-475
 | | | Lafutidine-d10 C22H19N3O4SD10 M.W. 441.62 L-476
 |
| Lafutidine Dihydro Impurity CAS No. N/A C22H31N3O4S M.W. 433.57 L-477
 | | | Labetalol CAS No. 36894-69-6 C19H24N2O3 M.W. 328.41 L-481
 |
| Labetalol Impurity A CAS No. N/A C19H23NO4 M.W. 329.40 L-482
 | | | Labetalol Impurity B CAS No. N/A C19H25NO4 M.W. 343.43 L-483
 |
| Labetalol-d6 C19H18N2O3D6 M.W. 334.45 L-484
 | | | Labetalol-d5 HCl C19H19N2O3D5. HCl M.W. 333.44 36.46 L-485
 |
| Lobucavir C11H15N5O3 M.W. 265.27 L-491
 | | | rac-Lipoic Acid-d5 C8H9O2S2D5 M.W. 211.36 L-852
 |
| 1,2,3-Trithiane-4-Pentanoic Acid (Thioctic Acid Impurity A) CAS No. 1204245-29-3 C8H14O2S3 M.W. 238.39 L-853
 | | | Lipoic Acid Related Compound CAS No. 916746-61-7 C12H23NO4S2 M.W. 309.45 L-854
 |
| Dihydrolipoic Acid CAS No. 462-20-4 C8H16O2S2 M.W. 208.34 L-855
 | | | Levocarnitine Impurity B C10H16O4 M.W. 200.24 L-861
 |
| Levocarnitine Impurity C C7H17N2O2 . Cl M.W. 161.23 35.45 L-862
 | | | Levocarnitine Impurity D C7H15N2O M.W. 143.21 L-863
 |
| Lipstatin CAS No. 96829-59-3 C29H49NO5 M.W. 491.72 L-871
 | | | Lipstatin-d3 C29H46NO5D3 M.W. 494.74 L-872
 |
| Linoleoyl Carnitine CAS No. 36816-10-1 C25H49NO4 M.W. 427.67 L-881
 | | | Loxoprofen CAS No. 68767-14-6 C15H18O3 M.W. 246.31 L-891
 |
| Levamisole Phosphate CAS No. 32093-35-9 C11H12N2S. H3O4P M.W. 204.30 98.00 L-901
 | |