|
|
|
|
|
|
| Noribogaine HCl C19H24N2O. HCl M.W. 296.42 36.46 I-355
 | | | Naltrexone-d4 C20H19NO4D4 M.W. 345.43 N-013
 |
| Naltrexone HCl CAS No. 16676-29-2 C20H23NO4. HCl M.W. 341.41 36.46 N-0131
 | | | Nateglinide-d5 CAS No. 105816-04-4 C19H22D5NO3 M.W. 322.46 N-021
 |
| Nateglinide acyl glucuronide C25H35NO9 M.W. 493.56 N-022
 | | | Nateglinide C19H27NO3 M.W. 317.43 N-023
 |
| Nateglinide Ethyl Ester CAS No. N/A C21H31NO3 M.W. 345.49 N-024
 | | | Nateglinide Ethyl Analog CAS No. N/A C18H25NO3 M.W. 303.40 N-025
 |
| Nefazodone HCl CAS No. 82752-99-6 C25H32ClN5O2.HCl M.W. 506.48 N-031
 | | | Nefazodone-d5 HCl CAS No. 82752-99-6 C25H27D5ClN5O2.HCl M.W. 511.51 N-032
 |
| Hydroxy Nefazodone HCl C25H32ClN5O3.HCl M.W. 522.48 N-033
 | | | Hydroxy Nefazodone-d5 HCl C25H27D5ClN5O3.HCl M.W. 527.51 N-034
 |
| Nefazodone-d6 HCl CAS No. N/A C25H26ClN5O2D6 HCl M.W. 476.06 36.46 N-035
 | | | Nefazodone-d6 C25H26ClN5O2D6 M.W. 476.06 N-036
 |
| Nelfinavir-d3 C32H42D3N3O4S M.W. 570.80 N-041
 | | | Nelfinavir Mesylate CAS No. 159989-65-8 C32H45N3O4S CH4O3S M.W. 567.80 96.11 N-042
 |
| Nelfinavir Oxazole Impurity (Impurity A) CAS No. 188936-07-4 C26H39N3O4 M.W. 457.62 N-043
 | | | Nelfinavir Sulfoxide Impurity (Impurity B) CAS No. 1041389-28-9 C32H45N3O5S M.W. 583.80 N-044
 |
| Nelfinavir Sulfone Impurity (Impurity C) CAS No. 1041389-29-0 C32H45N3O6S M.W. 599.80 N-045
 | | | Nelfinavir Regeoisomer (Impurity D) CAS No. 1025936-06-1 C32H45N3O4S M.W. 567.80 N-046
 |
| Thiophenol Dimer (Impurity E) CAS No. 882-33-7 C12H10S2 M.W. 218.34 N-047
 | | | Nelfinavir Hydroxy-tert-butylamide CAS No. 213135-56-9 C32H45N3O5S M.W. 583.80 N-048
 |
| Nicorandil-d4 CAS No. 65141-46-0 C8H5D4N3O4 M.W. 215.20 N-051
 | | | Naftifine HCl CAS No. 65473-14-5 C21H21N . HCl M.W. 287.41 36.46 N-053001
 |
| Naftifine-d3 HCl C21H18ND3 . HCl M.W. 290.43 36.46 N-053002
 | | | Nitisinone CAS No. 104206-65-7 C14H10F3NO5 M.W. 329.23 N-054001
 |
| Nitisinone-13C6 C813C6H10F3NO5 M.W. 335.17 N-054002
 | | | Neramexane-d6 C11H17ND6 M.W. 175.35 N-055001
 |
| Neramexane CAS No. 219810-59-0 C11H23N M.W. 169.31 N-055002
 | | | Nicotinic Acid Impurity L (3, 5-Dinitropyridine) CAS No. 940-06-7 C5H3N3O4 M.W. 169.10 N-056001
 |
| Nomegestrol CAS No. 58691-88-6 C21H28O3 M.W. 328.46 N-057001
 | | | Nimorazole CAS No. 6506-37-2 C9H14N4O3 M.W. 226.24 N-058001
 |
| Nimorazole-d4 CAS No. N/A C9H10N4O3D4 M.W. 230.26 N-058002
 | | | Neotame-d5 CAS No. N/A C20H25N2O5D5 M.W. 383.50 N-059001
 |
| (R,S)-Anabaseine-d4 C10H8N2D4 M.W. 164.24 N-061
 | | | Nicotinamide C6H6N2O M.W. 122.13 N-0610
 |
| Nornicotine-d4 CAS No. 66148-18-3 C9H8N2D4 M.W. 152.23 N-0611
 | | | N'-Nitrosonornicotine-d4 CAS No. 66148-19-4 C9H7N3OD4 M.W. 181.23 N-0612
 |
| Nicotine C10H14N2 M.W. 162.24 N-0613
 | | | Nicotine-d7 C10H7N2D7 M.W. 169.28 N-0614
 |
| Nicotine N-Oxide C10H14N2O M.W. 178.24 N-0615
 | | | Nicotine N-Glucuronide C16H22N2O6 M.W. 338.36 N-0616
 |
| Nicotinic acid-acyl-β-D-glucuronide C12H13NO8 M.W. 299.24 N-0617
 | | | Nicotinuric Acid C8H8N2O3 M.W. 180.16 N-0618
 |
| Nicotinuric Acid-d4 C8H4N2O3D4 M.W. 184.18 N-0619
 | | | (R,S)-Anabasine-d4 C10H10N2D4 M.W. 166.26 N-062
 |
| Anabasine C10H14N2 M.W. 162.24 N-0620
 | | | N-Methyl-2-pyridone-5-carboxamide (Nedifloramide) CAS No. 701-44-0 C7H8N2O2 M.W. 152.15 N-0621
 |
| N-Methyl-2-pyridone-5-carboxamide-d3 (Nedifloramide-d3) CAS No. 701-44-0 (non-d) C7H5D3N2O2 M.W. 155.17 N-0622
 | | | N-Methyl-2-Pyridone 5-Carboxylic Acid C7H7NO3 M.W. 153.14 N-0623
 |
| N-Methyl Nicotinamide C7H8N2O M.W. 136.15 N-0624
 | | | Nornicotine (3-(2-pyrrolidinyl)pyridine) C9H12N2 M.W. 148.21 N-0625
 |
| Nicotine Impurity C C10H12N2O M.W. 176.22 N-0626
 | | | N-Methyl-4-pyridone-3-carboxamide CAS No. 769-49-3 C7H8N2O2 M.W. 152.15 N-0627
 |
| N-Methyl-4-pyridone-3-carboxamide-d3 CAS No. NA C7H5N2O2D3 M.W. 155.17 N-0628
 | | | beta Nicotyrine C10H10N2 M.W. 158.20 N-0629
 |
| (R,S)-Anatabine-d4 C10H8N2D4 M.W. 164.24 N-063
 | | | Mysomine C9H10N2 M.W. 146.19 N-0630
 |
| Nicotine-d3 CAS No. 69980-24-1 C10H11N2D3 M.W. 165.25 N-064
 | | | Nicotine-d4 CAS No. 350818-69-8 C10H10N2D4 M.W. 166.26 N-065
 |
| Nicotinic Acid-d4 C6HNO2D4 M.W. 127.14 N-066
 | | | Nicotinic acid C6H5NO2 M.W. 123.11 N-067
 |
| Nicotinamide-N-oxide C6H6N2O2 M.W. 138.13 N-068
 | | | Nicotinamide-d4 C6H2N2OD4 M.W. 126.15 N-069
 |
| Dehydronifedipine-d6 C17H10D6N2O6 M.W. 350.36 N-071
 | | | Nifedipine-d6 CAS No. 21829-25-4 C17H12D6N2O6 M.W. 352.38 N-072
 |
| Nifedipine metabolite C16H14N2O7 M.W. 346.30 N-073
 | | | Dehydronifedipine C17H16N2O6 M.W. 344.33 N-074
 |
| Nifedipine metabolite lactone C17H14N2O6 M.W. 342.31 N-075
 | | | Dehydronitroso Nifedipine CAS No. 50428-14-3 C17H16N2O5 M.W. 328.33 N-076
 |
| Nifedipine CAS No. 21829-25-4 C17H18N2O6 M.W. 346.34 N-077
 | | | 4-Hydroxy nimesulide CAS No. 109032-22-6 C13H12N2O6S M.W. 324.31 N-081
 |
| Nimesulide Impurity A C13H11N3O7S M.W. 353.31 N-0810
 | | | Nimesulide Impurity G C12H9NO4 M.W. 231.21 N-0811
 |
| 2-Nitrodiphenyl Sulfide C12H9NO2S M.W. 231.28 N-0812
 | | | 4-Hydroxy nimesulide-d3 CAS No. 109032-22-6 (non-d) C13H9N2O6SD3 M.W. 327.33 N-082
 |
| Nimesulide-d5 CAS No. 51803-78-2 C13H7N2O5SD5 M.W. 313.35 N-083
 | | | Nimesulide C13H12N2O5S M.W. 308.31 N-084
 |
| Nimesulide Impurity C (2-phenoxyaniline) C12H11NO M.W. 185.23 N-085
 | | | Nimesulide Impurity D C12H10N2O3 M.W. 230.23 N-086
 |
| Nimesulide Impurity F C14H14N2O7S2 M.W. 386.40 N-087
 | | | Nimesulide Impurity B C13H11N3O7S M.W. 353.31 N-088
 |
| Nimesulide Impurity E C14H15NO5S2 M.W. 341.41 N-089
 | | | Nisoldipine CAS No. 63675-72-9 C20H24N2O6 M.W. 388.42 N-091
 |
| Nisoldipine-d6 CAS No. 63675-72-9 C20H18N2O6D6 M.W. 394.46 N-092
 | | | Dehydro nisoldipine C20H22N2O6 M.W. 386.41 N-093
 |
| Dehydro nisoldipine-d6 C20H16N2O6D6 M.W. 392.44 N-094
 | | | Desmethyl Nizatidine C11H19N5O2S2 M.W. 317.43 N-111
 |
| Nizatidine Impurity A CAS No. 54252-45-8 C4H9N3O2 M.W. 131.14 N-112
 | | | 17-Desacetyl Norgestimate C21H23NO2D6 M.W. 327.47 N-121
 |
| Norgestimate-d3 C23H28D3NO3 M.W. 372.53 N-122
 | | | 17-Desacetyl Norgestimate-d6 C21H23NO2D6 M.W. 333.51 N-123
 |
| Norgestimate-d6 C23D6H25NO3 M.W. 375.53 N-124
 | | | Norgestimate CAS No. 35189-28-7 C23H31NO3 M.W. 369.50 N-125
 |
| Neridronate Sodium salt C6H16NO7P2 . Na M.W. 276.14 22.99 N-131
 | | | Nifuroxazide-d4 CAS No. 965-52-6 (non-d) C12H5N3O5D4 M.W. 279.25 N-141
 |
| Nimodipine CAS No. 66085-59-4 C21H26N2O7 M.W. 418.45 N-151
 | | | Norepinephrine-d6 HCl C8H5NO3D6.HCl M.W. 175.22 36.46 N-171
 |
| Norepinephrine-d3.HCl Norepinephrine-d3.HCl M.W. 172.20 36.46 N-172
 | | | Norepinephrine Tartrate (Noradrenaline Tartrate) C8H11NO3. C4H6O6 M.W. 169.18 150.09 N-173
 |
| Norepinephrine Impurity (2-Amino-1-(3,4-dihydroxyphenyl)ethan-1-one HCl) C8H9NO3. HCl M.W. 167.17 36.46 N-174
 | | | Nabumetone CAS No. 42924-53-8 C15H16O2 M.W. 228.29 N-181
 |
| Nabumetone-d3 CAS No. 42924-53-8 (non-d) C15H13O2D3 M.W. 231.31 N-182
 | | | Nebumetone Impurity A CAS No. N/A C18H20O2 M.W. 268.36 N-183
 |
| Nebumetone Impurity B CAS No. N/A C19H22N2 M.W. 278.40 N-184
 | | | Nebumetone Impurity D CAS No. N/A C19H24N2 HCl M.W. 280.46 36.46 N-185
 |
| Nebivolol HCl CAS No. 152520-56-4 C22H25F2NO4.HCl M.W. 405.45 36.46 N-201
 | | | Nebivolol-d4 CAS No. 99200-09-6 (non-d) C22H21F2NO4D4 M.W. 409.47 N-202
 |
| Nebivolol Impurity A (L-Nebivolol) CAS No. 118457-16-2 C22H25F2NO4 M.W. 405.45 N-203
 | | | Nebivolol O-Beta-D-Glucuronide CAS No. N/A C28H33F2NO10 M.W. 581.57 N-204
 |
| Naloxone HCl C19H21NO4.HCl M.W. 327.38 36.46 N-211
 | | | Naloxone-d5 HCl C19H16NO4D5.HCl M.W. 332.41 36.46 N-212
 |
| Nevirapine CAS No. 129618-40-2 C15H14N4O M.W. 266.31 N-221
 | | | Nevirapine-d5 CAS No. 129618-40-2(non-d) C15H9N4OD5 M.W. 271.34 N-222
 |
| Nevirapine-d4 C15H10N4OD4 M.W. 270.33 N-223
 | | | Nevirapine Impurity D CAS No. N/A C30H26N8O2 M.W. 530.59 N-224
 |
| Naproxen-d3 C14H11O3D3 M.W. 233.28 N-231
 | | | Naproxen EP Impurity E CAS No. 26159-35-3 C15H16O3 M.W. 244.29 N-2310
 |
| Naproxen EP Impurity F CAS No. 31220-35-6 C16H18O3 M.W. 258.32 N-2311
 | | | Naproxen EP Impurity H CAS No. 5111-66-0 C11H10O2 M.W. 174.20 N-2312
 |
| Naproxen EP Impurity J CAS No. 21388-17-0 C13H14O M.W. 186.26 N-2313
 | | | Naproxen EP Impurity K CAS No. 77301-42-9 C13H14O2 M.W. 202.26 N-2314
 |
| Naproxen EP Impurity L CAS No. 3900-45-6 C13H12O2 M.W. 200.24 N-2315
 | | | Naproxen EP Impurity M CAS No. 93-04-9 C11H10O M.W. 158.20 N-2316
 |
| Naproxen EP Impurity N CAS No. 5111-65-9 C11H9BrO M.W. 237.10 N-2317
 | | | Naproxen EP Impurity (2-Carboxy-6-methoxynaphthalene) CAS No. 2471-70-7 C12H10O3 M.W. 202.21 N-2318
 |
| Naproxen Impurity O C16H18O4 M.W. 274.32 N-2319
 | | | Naproxen Acyl Glucuronide C20H22O9 M.W. 406.39 N-232
 |
| R-Naproxen C14H14O3 M.W. 230.27 N-2320
 | | | Naproxen EP Impurity A CAS No. 52079-10-4 C13H12O3 M.W. 216.24 N-233
 |
| 6-Methoxy-2-Naphthylacetic Acid (Naproxen EP Impurity I) CAS No. 23981-47-7 C13H12O3 M.W. 216.24 N-234
 | | | Naproxen CAS No. 22204-53-1 C14H14O3 M.W. 230.27 N-235
 |
| Naproxen Sodium CAS No. 26159-34-2 C14H13NaO3 M.W. 252.25 N-236
 | | | Naproxen EP Impurity B CAS No. 60424-17-1 C14H13ClO3 M.W. 264.71 N-237
 |
| Naproxen EP Impurity C CAS No. 27655-95-4 C14H13BrO3 M.W. 309.16 N-238
 | | | Naproxen EP Impurity D CAS No. 116883-61-5 C14H13IO3 M.W. 356.16 N-239
 |
| Normetanephrine-d3 HCl CAS No. 97-31-4 (non-d) C9H10NO3D3.HCl M.W. 186.23 36.46 N-251
 | | | Normetanephrine CAS No. 97-31-4 C9H13NO3 M.W. 183.21 N-252
 |
| Nadolol-d9 CAS No. 42200-33-9 (non-d) C17H18NO4D9 M.W. 318.46 N-261
 | | | Nadolol-d5 CAS No. 42200-33-9 (non-d) C17H22NO4D5 M.W. 314.46 N-262
 |
| Naratriptan C17H25N3O2S M.W. 335.47 N-271
 | | | Naratriptan Impurity F C20H27N4O4S2Cl M.W. 487.04 N-2710
 |
| Naratriptan-d3 CAS No. 121679-13-8 (non-d) C17H22N3O2SD3 M.W. 338.49 N-272
 | | | Naratriptan-13C-d3 CAS No. 121679-13-8 (non-d) C17H22N3O2SD3 M.W. 339.49 N-273
 |
| Naratriptan-d7 CAS No. 121679-13-8 (non-d) C17H18N3O2SD7 M.W. 342.51 N-274
 | | | Naratriptan N-oxide C17H25N3O3S M.W. 351.47 N-275
 |
| Naratriptan N-Nitroso C17H24N4O3S M.W. 364.47 N-276
 | | | Naratriptan Impurity C C31H41N5O2S M.W. 547.77 N-277
 |
| Naratriptan Impurity D C17H20N3O2SCl M.W. 365.88 N-278
 | | | Naratriptan Impurity E C20H32N4O4S2 M.W. 456.63 N-279
 |
| Norgestrel Sulfate Sodium Salt C21H27O5S.Na M.W. 391.51 22.99 N-281
 | | | Norgestrel-d6 C9H8N2D4 M.W. 318.49 N-282
 |
| 6β-Hydroxy Norgestrel CAS No. 55555-97-0 C21H28O3 M.W. 328.46 N-283
 | | | 3alfa,5-beta-Tetrahydro Levonorgestrel C21H32O2 M.W. 316.49 N-284
 |
| Norgestrel C21H28O2 M.W. 312.46 N-285
 | | | 17,17-bis(17-hydroxy-18a-homoestr-4-ene-3-one C38H54O4 M.W. 574.85 N-286
 |
| Norethindrone Sulfate Sodium Salt C20H25O5S.Na M.W. 377.48 22.99 N-291
 | | | Delta 5(10)-Norethindrone Acetate CAS No. 19637-28-6 C22H28O M.W. 340.47 N-2910
 |
| Delta-5(6)-Norethindrone Acetate (Impurity C) CAS No. 1175129-26-6 C22H28O3 M.W. 340.47 N-2911
 | | | Norethindrone Acetate-3-Isopropyl Ether CAS No. N/A C25H34O3 M.W. 382.55 N-2912
 |
| 6-Beta-Hydroxy-19-Norandrostenedione CAS No. 5949-49-5 C18H24O3 M.W. 288.39 N-2913
 | | | Norethindrone Impurity E CAS No. 66964-58-7 C22H30O4 M.W. 358.48 N-2914
 |
| Norethindrone 17-O-Glucuronide Sodium Salt C26H33O8.Na M.W. 473.55 22.99 N-292
 | | | Norethindrone-d6 C20H20O2D6 M.W. 304.47 N-293
 |
| Norethindrone C20H26O2 M.W. 298.43 N-294
 | | | 6, 7-Didehydronorethindrone CAS No. 31528-46-8 C20H24O2 M.W. 296.41 N-295
 |
| 6â-Hydroxynorethindrone (Norethindrone Impurity H) CAS No. 51724-44-8 C20H26O3 M.W. 314.45 N-296
 | | | 6β-Hydroxynorethindrone Acetate CAS No. 6856-27-5 C22H28O4 M.W. 356.47 N-297
 |
| 6-Ketonorethindrone Acetate CAS No. 438244-27-0 C22H26O4 M.W. 354.45 N-298
 | | | Norethisterone Enanthate C27H38O3 M.W. 410.60 N-299
 |
| Nilotinib CAS No. 641571-10-0 C28H22F3N7O M.W. 529.53 N-311
 | | | Nilotinib-d6 CAS No. 641571-10-0 (non-d) C28H16F3N7OD6 M.W. 535.58 N-312
 |
| Nilotinib N-Oxide C28H22F3N7O2 M.W. 545.53 N-313
 | | | Norfloxacin CAS No. 70458-96-7 C16H18FN3O3 M.W. 319.34 N-321
 |
| Norfloxacin-d8 CAS No. 70458-96-7 (non-d) C16H10FN3O3D8 M.W. 327.34 N-322
 | | | Norfloxacin-acyl-β-D-glucuronide C22H26FN3O9 M.W. 495.47 N-323
 |
| Naphazoline CAS No. 835-31-4 C14H14N2 M.W. 210.28 N-331
 | | | Naphazoline-d4 CAS No. 835-31-4 (non-d) C14H10N2D4 M.W. 214.32 N-332
 |
| Naphazoline Impurity B (1-Naphthaleneacetic Acid) CAS No. 86-87-3 C12H10O2 M.W. 186.21 N-333
 | | | Naphazoline Impurity D C14H14N2 M.W. 210.28 N-334
 |
| Naphazoline Impurity C (1-Naphthyl Acetonitrile) CAS No. 132-75-2 C12H9N M.W. 167.21 N-335
 | | | Nitrofurantoin CAS No. 67-20-9 C8H6N4O5 M.W. 238.16 N-341
 |
| Nitrofurantoin-13C3 CAS No. 67-20-9 (non-labeled) C8H6N4O5 M.W. 241.13 N-342
 | | | Nitrofurantoin Impurity CAS No. N/A C7H6N3O5 Na M.W. 212.14 22.99 N-343
 |
| Nigericin C40H68O11 M.W. 724.98 N-351
 | | | Nortriptyline HCl C19H21N.HCl M.W. 263.39 36.46 N-361
 |
| Nortriptyline-d3 HCl CAS No. 72-69-5 (non-d) C19H18ND3.HCl M.W. 266.40 36.46 N-362
 | | | Nortriptyline Impurity E C20H21N . HCl M.W. 275.40 36.46 N-363
 |
| Nortriptyline Impurity F C20H23N . HCl M.W. 277.41 36.46 N-364
 | | | Nefopam Hydrochloride CAS No. 23327-57-3 C17H19NO.HCl M.W. 289.81 N-371
 |
| N-Hydroxymethyl Nefopam N-Oxide CAS No. N/A C17H19NO3 M.W. 285.35 N-3710
 | | | Nefopam-d3 N-Oxide CAS No. N/A C17H16NO2D3 M.W. 272.36 N-3711
 |
| (lR,5R)/(lS,5S)-Nefopam N-Oxide C17H19NO2 M.W. 269.35 N-372
 | | | Nefopam-d3 C17H16NOD3 M.W. 256.37 N-373
 |
| N-Desmethyl Nefopam Hydrochloride C16H18NO.HCl M.W. 276.79 N-374
 | | | N-Desmethyl Nefopam-d4 HCl C16H13NOD4.HCl M.W. 243.34 36.46 N-375
 |
| Nefopam-d4 HCl C17H15NOD4.HCl M.W. 257.37 36.46 N-376
 | | | (lR,5R)/(lS,5S)-Nefopam-d4 N-Oxide C17H15NO2D4 M.W. 273.37 N-377
 |
| Nefopam-d4 N-Oxide (Mixture of (lR,5S)/(lS,5R) and (lR,5R)/(lS,5S) Diastereomers) C17H15NO2D4 M.W. 273.37 N-378
 | | | (lR,5S)/(lS,5R)-Nefopam N-Oxide C17H19NO2 M.W. 269.35 N-379
 |
| Nafcillin-d5 C21H17N2O5SD5 M.W. 419.51 N-381
 | | | Nilutamide-d6 CAS No. NA C12H4F3N3O4D6 M.W. 323.26 N-401
 |
| Nilutamide CAS No. 63612-50-0 C12H10F3N3O4 M.W. 317.23 N-402
 | | | Nepafenac CAS No. N/A C15H14N2O2 M.W. 254.29 N-411
 |
| Nepafenac-d5 CAS No. N/A C15H9N2O2D5 M.W. 259.32 N-412
 | | | Neochlorogenic Acid C16H18O9 M.W. 354.32 N-421
 |
| Naftopidil CAS No. 57149-97-2 C24H28N2O3 M.W. 392.50 N-431
 | | | Naftopidil-d8 CAS No. N/A C24H20N2O3D8 M.W. 400.55 N-432
 |
| Naftopidil-d5 CAS No. N/A C24H23N2O3D5 M.W. 397.53 N-433
 | | | N’-Nitrosopentyl-3-(Picolyl) Amine CAS No. 124521-15-9 C11H17N3O M.W. 207.28 N-441
 |
| Norethisterone Acetate Impurity G C22H26O4 M.W. 354.45 N-451
 | | | Norethisterone Acetate Impurity F C22H28O4 M.W. 356.47 N-452
 |
| Nifurtimox CAS No. 23256-30-6 C10H13N3O5S M.W. 287.30 N-461
 | | | Nifurtimox-d4 CAS No. N/A C10H9N3O5SD4 M.W. 291.32 N-462
 |
| Nifuratel CAS No. 4936-47-4 C10H11N3O5S M.W. 285.28 N-471
 | | | Nitrofurfural Diacetate (Nifuratel Impurity A) CAS No. N/A C9H9NO7 M.W. 243.17 N-472
 |
| 5-Nitrofuraldazine (Nifuratel Impurity B) CAS No. N/A C10H6N4O6 M.W. 278.18 N-473
 | | | Nicardipine CAS No. 55985-32-5 C26H29N3O6 M.W. 479.54 N-481
 |
| Nicardipine Related Compound 1 CAS No. N/A C17H16N2O6 M.W. 344.33 N-482
 | | | Nicardipine Related Compound 2 CAS No. N/A C16H14N2O6 M.W. 330.30 N-483
 |
| Nicardipine Related Compound 3 CAS No. N/A C15H16N2O4 M.W. 288,31 N-484
 | | | Nicardipine Related Compound 4 CAS No. N/A C25H27N3O6 HCl M.W. 465.51 36.46 N-485
 |
| Dehydro Nicardipine HCl CAS No. 1216817-27-4 C26H27N3O6. HCl M.W. 477.52 36.46 N-486
 | | | Dehydro Nicardipine (Freebase) CAS No. 59875-58-0 C26H27N3O6 M.W. 477.52 N-487
 |
| Neostigmine CAS No. 59-99-4 C12H19N2O2 CH3O4S M.W. 223.30 111.10 N-491
 | | | Nor Neostigmine CAS No. 16088-19-0 C11H16N2O2 M.W. 208.26 N-492
 |
| Nor Neostigmine-d6 CAS No. N/A C11H10N2O2D6 M.W. 214.30 N-493
 | | | 2,2’-Bisnalmefene CAS No. 176220-84-1 C42H48N2O6 M.W. 767.86 N-501
 |
| Norethynodrel CAS No. 68-23-5 C20H26O2 M.W. 298.43 N-511
 | | | Nelarabine CAS No. 121032-29-9 C11H15N5O5 M.W. 297.27 N-521
 |
| Nifedipine CAS No. 21829-25-4 C17H18N2O6 M.W. 346.34 PF-0026
 | |