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Alfa Chemistry is a global leading supplier of analytical chemistry reagents, providing a wide range of analytical chemicals such as analytical standards for a variety of analytical applications.

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Product
Nebivolol Impurity 39 Nebivolol Impurity 39. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2-chloro-1-(6-fluorochroman-2-yl)ethanone. CAS No. 1219914-99-4. Molecular Formula: C11H10ClFO2. Mole Weight: 228.65. Catalog: APB1219914994. Alfa Chemistry Analytical Products
Nebivolol Impurity 40 Nebivolol Impurity 40. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (S)-2-chloro-1-(6-fluorochroman-2-yl)ethanone. CAS No. 1219915-00-0. Molecular Formula: C11H10ClFO2. Mole Weight: 228.65. Catalog: APB1219915000. Alfa Chemistry Analytical Products
Nebivolol Impurity 47 Nebivolol Impurity 47. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (R)-2-(benzylamino)-1-((S)-6-fluorochroman-2-yl)ethanol. CAS No. 1030385-16-0. Molecular Formula: C18H20FNO2. Mole Weight: 301.36. Catalog: APB1030385160. Alfa Chemistry Analytical Products
Nefopam Impurity 6 Nefopam Impurity 6. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-benzoyl-N-(2-hydroxyethyl)benzamide. CAS No. 108941-80-6. Molecular Formula: C16H15NO3. Mole Weight: 269.11. Catalog: APB108941806. Alfa Chemistry Analytical Products
Neomycin sulfate United States Pharmacopeia (USP) Reference Standard. Uses: For analytical and research use. Group: Pharmacopeia & metrological institutes standards; pharma & vet compounds & metabolites; standards for environmental regulatory methods; pharma & vet compounds & metabolites; european pharmacopoeia (ph. eur.); pharmacopoeial standards. Alternative Names: Neomycin sulphate, Quintess-N, Otobiotic,Neomycin, sulfate (salt), Fradiomycin sulfate, Tuttomycin, Myacine, Mycifradin N, Lidamycin Creme, Myciguent, Neomycin sulfate, Mycifradin, Nivemycin, Mycerin sulfate, Biosol, Bykomycin, Neomix, Neosulf, New France F, Neobrettin, Neo-Mantle Creme, Neolate, Endomixin, Neofracin. CAS No. 1405-10-3. Pack Sizes: 200MG. Molecular Formula: C23H52N6O25S3. Mole Weight: 908.88. Catalog: APS1405103. Format: Neat. Alfa Chemistry Analytical Products
Neomycin Sulfate EP Impurity E Sulfate Salt Neomycin Sulfate EP Impurity E Sulfate Salt. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1263-89-4. Molecular Formula: C23H47N5O18S. Mole Weight: 713.71. Catalog: APB1263894. Alfa Chemistry Analytical Products
Neostigmine EP Impurity C Neostigmine EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. CAS No. 16088-19-0. Molecular Formula: C11H16N2O2. Mole Weight: 208.26. Catalog: APB16088190. Alfa Chemistry Analytical Products
Nepafenib impurity 1 Nepafenib impurity 1. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1246814-53-8. Molecular Formula: C15H9D5N2O2. Mole Weight: 259.32. Catalog: APB1246814538. Alfa Chemistry Analytical Products
Nepafenib impurity 10 Nepafenib impurity 10. Uses: For analytical and research use. Group: Impurity standards. CAS No. 173262-94-7. Molecular Formula: C18H20N2O2S. Mole Weight: 328.43. Catalog: APB173262947. Alfa Chemistry Analytical Products
Nepafenib impurity 11 Nepafenib impurity 11. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1881270-48-9. Molecular Formula: C18H19ClN2O2S. Mole Weight: 362.87. Catalog: APB1881270489. Alfa Chemistry Analytical Products
Nepafenib impurity 4 Nepafenib impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1246956-18-2. Molecular Formula: C15H16N2O2. Mole Weight: 256.31. Catalog: APB1246956182. Alfa Chemistry Analytical Products
Nepafenib impurity 7 Nepafenib impurity 7. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1881270-49-0. Molecular Formula: C15H12N2O2. Mole Weight: 252.27. Catalog: APB1881270490. Alfa Chemistry Analytical Products
Nepafenib impurity 8 Nepafenib impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1881270-50-3. Molecular Formula: C15H12N2O4. Mole Weight: 284.27. Catalog: APB1881270503. Alfa Chemistry Analytical Products
Nepafenib impurity 9 Nepafenib impurity 9. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1881270-51-4. Molecular Formula: C30H24N4O5. Mole Weight: 520.55. Catalog: APB1881270514. Alfa Chemistry Analytical Products
Neratinib Impurity 28 Neratinib Impurity 28. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1259519-60-2. Molecular Formula: C7H14ClNO2. Mole Weight: 179.64. Catalog: APB1259519602. Alfa Chemistry Analytical Products
Neratinib Impurity 33 Neratinib Impurity 33. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1222172-49-7. Molecular Formula: C12H16N2O4. Mole Weight: 252.27. Catalog: APB1222172497. Alfa Chemistry Analytical Products
Neratinib Impurity 34 Neratinib Impurity 34. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1222172-50-0. Molecular Formula: C15H17N3O4. Mole Weight: 303.32. Catalog: APB1222172500. Alfa Chemistry Analytical Products
Neratinib Impurity 6 Neratinib Impurity 6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 102137-46-2. Molecular Formula: C12H12N2O. Mole Weight: 200.24. Catalog: APB102137462. Alfa Chemistry Analytical Products
Neratinib Impurity 8 Neratinib Impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 105326-69-0. Molecular Formula: C12H11ClN2O. Mole Weight: 234.68. Catalog: APB105326690. Alfa Chemistry Analytical Products
Neticonazole Impurity 1 Neticonazole Impurity 1. Uses: For analytical and research use. Group: Impurity standards. CAS No. 111-24-0. Molecular Formula: C5H10Br2. Mole Weight: 229.94. Catalog: APB111240. Alfa Chemistry Analytical Products
Netupitant impurities 7 Netupitant impurities 7. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144632-97-3. Molecular Formula: C12H10F6O2. Mole Weight: 300.2. Catalog: APB144632973. Alfa Chemistry Analytical Products
NG, NG'-Dimethyl-L-Arginine-d6 (Arginine impurity 19) NG, NG'-Dimethyl-L-Arginine-d6 (Arginine impurity 19). Uses: For analytical and research use. Group: Impurity standards. CAS No. 1331888-08-4. Molecular Formula: C8H12N4O2D6. Mole Weight: 208.29. Catalog: APB1331888084. Alfa Chemistry Analytical Products
N-Hexanol N-Hexanol. Uses: For analytical and research use. Group: Impurity standards. CAS No. 111-27-3. Molecular Formula: C6H14O. Mole Weight: 102.18. Catalog: APB111273. Alfa Chemistry Analytical Products
NHS-Fluorescein NHS-Fluorescein. Uses: For analytical and research use. Group: Impurity standards. CAS No. 135795-62-9. Molecular Formula: C24H15NO7. Mole Weight: 429.38. Catalog: APB135795629. Alfa Chemistry Analytical Products
N-Hydroxy Metaraminol N-Hydroxy Metaraminol. Uses: For analytical and research use. Group: Impurity standards. Catalog: APS002529. Format: Neat. Alfa Chemistry Analytical Products
N-Hydroxy Ropinirole Hydrochloride N-Hydroxy Ropinirole Hydrochloride. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2H-Indol-2-one, 4-[2-(dipropylamino)ethyl]-1,3-dihydro-1-hydroxy-, hydrochloride (1:1). CAS No. 1542267-72-0. Pack Sizes: 10MG. IUPAC Name: 4-[2-(dipropylamino)ethyl]-1-hydroxy-3H-indol-2-one;hydrochloride. Molecular Formula: C16H24N2O2.ClH. Mole Weight: 312.83. Catalog: APS1542267720. SMILES: Cl.CCCN(CCC)CCc1cccc2N(O)C(=O)Cc12. Format: Neat. Shipping: Room Temperature. Alfa Chemistry Analytical Products
Niacinamide Pharmacopeia & Metrological Institutes Standards. Uses: For analytical and research use. Group: Reagents. CAS No. 98-92-0. Pack Sizes: 500MG. Alfa Chemistry Analytical Products
Nicardipine Impurity 20 Nicardipine Impurity 20. Uses: For analytical and research use. Group: Impurity standards. CAS No. 167963-66-8. Molecular Formula: C18H17N3O6. Mole Weight: 371.35. Catalog: APB167963668. Alfa Chemistry Analytical Products
Nicardipine Impurity 25 Nicardipine Impurity 25. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 2-(3-nitrobenzylidene)-3-oxobutanoic acid. CAS No. 101072-61-1. Molecular Formula: C11H9NO5. Mole Weight: 235.19. Catalog: APB101072611. Alfa Chemistry Analytical Products
Nicardipine Impurity 44 Nicardipine Impurity 44. Uses: For analytical and research use. Group: Impurity standards. CAS No. 101-98-4. Molecular Formula: C10H15NO. Mole Weight: 165.24. Catalog: APB101984. Alfa Chemistry Analytical Products
Niclosamide Niclosamide. Uses: For analytical and research use. Group: Pesticides & metabolites; pesticides & metabolites; api standards; pharmaceutical toxicology. Alternative Names: BAY 2353, Nasemo, Helmiantin, Zestocarp, Benzamide, 5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxy-Salicylanilide, 2',5-dichloro-4'-nitro- (8CI), Cestocide, Phenasal, Mansonil, 5-Chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide, Radeverm, Sulqui, Yomesan, Lintex, 2-Chloro-4-nitrophenylamide-6-chlorosalicylic acid, N-(2-Chloro-4-nitrophenyl)-5-chlorosalicylamide, Iomesan, N-(2'-Chloro-4'-nitrophenyl)-5-chlorosalicylamide, WR 46234, Devermin, Bayer 2353, 2',5-Dichloro-4'-nitrosalicylanilide, Sagimid, NSC 178296, Cestocid, Fenasal, Vermitid, Vermitin, Fedal-Telmin, Mato, HL 2447, Tredemine, Niclocide, 5-Chloro-2'-chloro-4'-nitrosalicylanilide, 5-Chloro-N-(2'-chloro-4'-nitrophenyl)salicylamide, Niclosamide, 5-Chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide, 2-Hydroxy-5-chloro-N-(2-chloro-4-nitrophenyl)benzamide, Ruby, Utosamide, Devermine, Bayluscid,Niclosamide anhydrous. CAS No. 50-65-7. IUPAC Name: 5-chloro-N-(2-chloro-4-nitrophenyl)-2-hydroxybenzamide. Molecular Formula: C13H8Cl2N2O4. Mole Weight: 327.12. Catalog: APS50657. SMILES: Oc1ccc (Cl)cc1C (=O)Nc2ccc (cc2Cl)[N+] (=O)[O-]. Format: Neat. Alfa Chemistry Analytical Products
Nicorandil Impurity 11 Nicorandil Impurity 11. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 3-((2-(nitrooxy)ethyl)carbamoyl)pyridine 1-oxide. CAS No. 107833-98-7. Molecular Formula: C8H9N3O5. Mole Weight: 227.17. Catalog: APB107833987. Alfa Chemistry Analytical Products
Nicorandil Impurity 44 Nicorandil Impurity 44. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1854-30-4. Molecular Formula: C4H9NO2. Mole Weight: 103.12. Catalog: APB1854304. Alfa Chemistry Analytical Products
Nicorandil Impurity 54 Nicorandil Impurity 54. Uses: For analytical and research use. Group: Impurity standards. CAS No. 13589-33-8. Molecular Formula: C4H8N2O3. Mole Weight: 132.12. Catalog: APB13589338. Alfa Chemistry Analytical Products
Nicotinamide EP Impurity B Nicotinamide EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: nicotinonitrile. CAS No. 100-54-9. Molecular Formula: C6H4N2. Mole Weight: 104.11. Catalog: APB100549. Alfa Chemistry Analytical Products
Nicotinic Acid EP Impurity D Nicotinic Acid EP Impurity D. Uses: For analytical and research use. Group: Impurity standards. CAS No. 100-26-5. Molecular Formula: C7H5NO4. Mole Weight: 167.12. Catalog: APB100265. Alfa Chemistry Analytical Products
Nicotinic Acid Impurity 10 Nicotinic Acid Impurity 10. Uses: For analytical and research use. Group: Impurity standards. CAS No. 14150-95-9. Molecular Formula: C5H6N2O. Mole Weight: 110.12. Catalog: APB14150959. Alfa Chemistry Analytical Products
Nicotinic Acid Impurity 4 Nicotinic Acid Impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1019-57-4. Molecular Formula: C8H8N4O4. Mole Weight: 224.18. Catalog: APB1019574. Alfa Chemistry Analytical Products
Nicotinic Acid Impurity 6 Nicotinic Acid Impurity 6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 167639-20-5. Molecular Formula: C10H10N4O4. Mole Weight: 250.21. Catalog: APB167639205. Alfa Chemistry Analytical Products
Nicotinic Acid Impurity 7 Nicotinic Acid Impurity 7. Uses: For analytical and research use. Group: Impurity standards. CAS No. 13362-26-0. Molecular Formula: C8H10N2O2. Mole Weight: 166.18. Catalog: APB13362260. Alfa Chemistry Analytical Products
Nicotinic Acid Impurity 9 Nicotinic Acid Impurity 9. Uses: For analytical and research use. Group: Impurity standards. CAS No. 14305-17-0. Molecular Formula: C5H4BrNO. Mole Weight: 174. Catalog: APB14305170. Alfa Chemistry Analytical Products
Nifedipine-D4 Nifedipine-D4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1219798-99-8. Molecular Formula: C17H14D4N2O6. Mole Weight: 350.36. Catalog: APB1219798998. Alfa Chemistry Analytical Products
Nifedipine-D6 Nifedipine-D6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 125464-52-0. Molecular Formula: C17H10D6N2O6. Mole Weight: 350.36. Catalog: APB125464520. Alfa Chemistry Analytical Products
Nifedipine Impurity 10 Nifedipine Impurity 10. Uses: For analytical and research use. Group: Impurity standards. CAS No. 10323-98-5. Molecular Formula: C13H13NO3. Mole Weight: 231.25. Catalog: APB10323985. Alfa Chemistry Analytical Products
Nifedipine Impurity 22 Nifedipine Impurity 22. Uses: For analytical and research use. Group: Impurity standards. CAS No. 167710-84-1. Molecular Formula: C17H18N2O5. Mole Weight: 330.34. Catalog: APB167710841. Alfa Chemistry Analytical Products
Nifedipine Impurity 46 Nifedipine Impurity 46. Uses: For analytical and research use. Group: Impurity standards. CAS No. 111304-29-1. Molecular Formula: C12H11NO5. Mole Weight: 249.22. Catalog: APB111304291. Alfa Chemistry Analytical Products
Nifedipine Impurity 56 Nifedipine Impurity 56. Uses: For analytical and research use. Group: Impurity standards. CAS No. 111304-31-5. Molecular Formula: C12H11NO5. Mole Weight: 249.22. Catalog: APB111304315. Alfa Chemistry Analytical Products
Nifedipine Impurity 6 Nifedipine Impurity 6. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: methyl 6-methyl-2,4-bis(2-nitrophenyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate. CAS No. 108139-78-2. Molecular Formula: C19H18N4O6. Mole Weight: 398.12. Catalog: APB108139782. Alfa Chemistry Analytical Products
Nifuratel impurity 3 Nifuratel impurity 3. Uses: For analytical and research use. Group: Impurity standards. CAS No. 14359-97-8. Molecular Formula: C4H12N2OS. Mole Weight: 136.21. Catalog: APB14359978. Alfa Chemistry Analytical Products
Nifuratel impurity 4 Nifuratel impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1445990-09-9. Molecular Formula: C10H11N3O6S. Mole Weight: 301.27. Catalog: APB1445990099. Alfa Chemistry Analytical Products
Nifuzide EP impurity D Nifuzide EP impurity D. Uses: For analytical and research use. Group: Impurity standards. CAS No. 112537-96-9. Molecular Formula: C10H6N4O6. Mole Weight: 278.18. Catalog: APB112537969. Alfa Chemistry Analytical Products
Nilotinib 3-Imidazolyl N-Difluoroboryloxide Nilotinib 3-Imidazolyl N-Difluoroboryloxide. Uses: For analytical and research use. Group: Impurity standards. Catalog: APS002584. Format: Neat. Alfa Chemistry Analytical Products
Nilotinib 3-Imidazolyl N-oxide Nilotinib 3-Imidazolyl N-oxide. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2139382-75-3. IUPAC Name: 4-methyl-N-[3-(4-methyl-3-oxo-imidazol-1-yl)-5-(trifluoromethyl)phenyl]-3-[[4-(3-pyridyl)pyrimidin-2-yl]amino]benzamide. Molecular Formula: C28H22F3N7O2. Mole Weight: 545.52. Catalog: APS2139382753. SMILES: Cc1ccc (cc1Nc2nccc (n2)c3cccnc3)C (=O)Nc4cc (cc (c4)C (F) (F)F)n5cc (C)n (=O)c5. Format: Neat. Alfa Chemistry Analytical Products
Nilotinib EP Impurity B Nilotinib EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 18595-18-1. Molecular Formula: C9H11NO2. Mole Weight: 165.19. Catalog: APB18595181. Alfa Chemistry Analytical Products
Nilotinib EP Impurity E Nilotinib EP Impurity E. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2119583-26-3. Molecular Formula: C27H20F3N7O. Mole Weight: 515.5. Catalog: APB2119583263. Alfa Chemistry Analytical Products
Nilotinib EP Impurity F Nilotinib EP Impurity F. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2119583-24-1. Molecular Formula: C29H24F3N7O. Mole Weight: 543.55. Catalog: APB2119583241. Alfa Chemistry Analytical Products
Nilotinib Impurity 8 Nilotinib Impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2119583-27-4. Molecular Formula: C12H12F3N3. Mole Weight: 255.24. Catalog: APB2119583274. Alfa Chemistry Analytical Products
Nimesulide-D5 Nimesulide-D5. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1330180-22-7. Molecular Formula: C13H7D5N2O5S. Mole Weight: 313.34. Catalog: APB1330180227. Alfa Chemistry Analytical Products
Nimodipine Impurity 14 Nimodipine Impurity 14. Uses: For analytical and research use. Group: Impurity standards. CAS No. 155861-24-8. Molecular Formula: C21H28N2O5. Mole Weight: 388.46. Catalog: APB155861248. Alfa Chemistry Analytical Products
Nimodipine Impurity 17 (Nicardipine Impurity 12) Nimodipine Impurity 17 (Nicardipine Impurity 12). Uses: For analytical and research use. Group: Impurity standards. CAS No. 123973-71-7. Molecular Formula: C25H27N3O6. Mole Weight: 465.51. Catalog: APB123973717. Alfa Chemistry Analytical Products
Nimodipine Impurity 19 Nimodipine Impurity 19. Uses: For analytical and research use. Group: Impurity standards. CAS No. 21112-45-8. Molecular Formula: C4H7NO2. Mole Weight: 101.11. Catalog: APB21112458. Alfa Chemistry Analytical Products
Nimodipine Impurity 21 Nimodipine Impurity 21. Uses: For analytical and research use. Group: Impurity standards. CAS No. 144757-56-2. Molecular Formula: C19H22N2O6. Mole Weight: 374.39. Catalog: APB144757562. Alfa Chemistry Analytical Products
Nintedanib Impurity 12 Nintedanib Impurity 12. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1139458-48-2. Molecular Formula: C26H23N3O4. Mole Weight: 441.49. Catalog: APB1139458482. Alfa Chemistry Analytical Products
Nintedanib Impurity 24 Nintedanib Impurity 24. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1438271-13-6. Molecular Formula: C18H15NO4. Mole Weight: 309.32. Catalog: APB1438271136. Alfa Chemistry Analytical Products
Nintedanib Impurity 4 Nintedanib Impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 2117628-65-4. Molecular Formula: C14H22N4O. Mole Weight: 262.36. Catalog: APB2117628654. Alfa Chemistry Analytical Products
Nintedanib Impurity 6 Nintedanib Impurity 6. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1038972-16-5. Molecular Formula: C13H18N4O3. Mole Weight: 278.31. Catalog: APB1038972165. Alfa Chemistry Analytical Products
Nintedanib impurity 63 Nintedanib impurity 63. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1895918-24-7. Molecular Formula: C10H9NO4. Mole Weight: 207.19. Catalog: APB1895918247. Alfa Chemistry Analytical Products
Nintedanib Impurity 9 Nintedanib Impurity 9. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1860012-61-8. Molecular Formula: C9H10N2O4. Mole Weight: 210.19. Catalog: APB1860012618. Alfa Chemistry Analytical Products
Niobium pentoxide powder Niobium pentoxide powder. Uses: For analytical and research use. Group: Process materials, geological, cement & soils. Catalog: APS010593. Shipping: Room Temperature. Alfa Chemistry Analytical Products
Niraparib impurity 1 Niraparib impurity 1. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1038915-58-0. Molecular Formula: C19H20N4O. Mole Weight: 320.4. Catalog: APB1038915580. Alfa Chemistry Analytical Products

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