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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Linagliptin Impurity P
- CAS:
- MF:
- Chemical Name:Linagliptin Impurity U
- CAS:
- MF:
- Structure:
- Chemical Name:(R)-2-((6-(3-aminopiperidin-1-yl)-3-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)methyl)-4-fluorobenzoic acid
- CAS:1917324-15-2
- MF:C18H21FN4O4
- Structure:
- Chemical Name:N1,N4-bis((R)-1-(3-(2-cyano-5-fluorobenzyl)-1-methyl-2,6-dioxo-1,2,3,6-tetrahydropyrimidin-4-yl)piperidin-3-yl)succinamide
- CAS:
- MF:C40H42F2N10O6
- Structure:
- Chemical Name:ethyl ((1R,3aR,4aR,6S,8aR,9S,9aS)-9-((E)-2-(5-(3-fluorophenyl)pyridin-2-yl)vinyl)-1-methyl-3-oxododecahydronaphtho[2,3-c]furan-6-yl)carbamate
- CAS:618385-10-7
- MF:C29H33FN2O4
- Structure:
- Chemical Name:(2R)-2-deoxy-2-fluoro-2-methyl-α/β-D-erythro-pentofuranosyl chloride-3,5-dibenzoate
- CAS:1621160-31-3
- MF:C20H18ClFO5
- Chemical Name:Apremilast Impurity F
- CAS:
- MF:
- Chemical Name:Etoricoxib Impurity 17
- CAS:
- MF:
- Structure:
- Chemical Name:Ibrutinib Impurity 3
- CAS:1226872-27-0
- MF:C25H26N6O4
- Structure:
- Chemical Name:Imatinib Impurity 2
- CAS:1384131-91-2
- MF:C7H11NO
- Structure:
- Chemical Name:Mirabegron M5 (YM-538852)
- CAS:1365244-63-8
- MF:C18H22N2O2
- Chemical Name:Sofosbuvir Impurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Vonoprazan Impurity 2
- CAS:881733-36-4
- MF:C17H16FN3O2S
- Structure:
- Chemical Name:Atomoxetine EP impurity A
- CAS:56161-70-7
- MF:C16H19NO
- Chemical Name:Cinacalcet Impurity 21
- CAS:
- MF:
- Chemical Name:Dasatinib Impurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Doxofylline Impurity 1
- CAS:1429636-74-7
- MF:C10H16N4O3
- Structure:
- Chemical Name:Isopropyl4-hydroxy-3,5-diisopropylbenzoate
- CAS:2095678-97-8
- MF:C16H24O3
- Structure:
- Chemical Name:Sitagliptin EP Impurity B
- CAS:1345822-87-8
- MF:C16H19F5N5O5P
- Chemical Name:Trospium Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Vildagliptin Related Compound A
- CAS:741657-02-3
- MF:C17H25N3O
- Structure:
- Chemical Name:2-amino-9-((1R,3R,4S)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl)-1,9-dihydro-6H-purin-6-one hydrate
- CAS:1367369-78-5
- MF:C12H15N5O3
- Structure:
- Chemical Name:Moxifloxacin Impurity 6
- CAS:849770-49-6
- MF:C25H29BFN3O8
- Structure:
- Chemical Name:Sitafloxacin Impurity A
- CAS:500295-83-0
- MF:C16H16FN3O3
- Structure:
- Chemical Name:1-benzylpiperidin-4-yl [1,1'-biphenyl]-2-ylcarbamate
- CAS:171723-80-1
- MF:C25H26N2O2
- Chemical Name:Merariveron impurity C
- CAS:
- MF:
- Chemical Name:Cefazoline Impurity A
- CAS:
- MF:
- Chemical Name:Rifaximin impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:4,5,6,7-Tetrahydro-thieno[3,2-c]pyridin-2-ol 2-acetate
- CAS:1151904-85-6
- MF:C9H11NO2S
- Structure:
- Chemical Name:ethyl (R)-9,10-difluoro-3-methyl-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate
- CAS:110548-06-6
- MF:C15H13F2NO4
- Structure:
- Chemical Name:Roxithromycin EP Impurity J
- CAS:134834-12-1
- MF:C40H73ClN2O14
- Structure:
- Chemical Name:Venlafaxine D6
- CAS:940297-06-3
- MF:C17H27NO2
- Chemical Name:Levosimendan Impurity 3
- CAS:
- MF:
- Chemical Name:Sofosbuvir Impurity29
- CAS:
- MF:
- Chemical Name:Acarbose Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Levosimendan Impurity 1
- CAS:1643439-59-1
- MF:C22H23N7O2
- Chemical Name:Atomoxetine EP Impurity F
- CAS:
- MF:
- Chemical Name:Quetiapine EP Impurity Q
- CAS:
- MF:
- Chemical Name:Cefoxitin Impurity
- CAS:
- MF:
- Chemical Name:Acemetacin Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:ethyl (S)-6,7,8-trifluoro-1-(1-hydroxypropan-2-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylate
- CAS:110548-03-3
- MF:C15H14F3NO4
- Structure:
- Chemical Name:ethyl (E)-2-(2-(4-methoxyphenyl)hydrazono)propanoate
- CAS:4792-57-8
- MF:C12H16N2O3
- Structure:
- Chemical Name:ACT 373898
- CAS:1433875-14-9
- MF:C15H17BrN4O5S
- Structure:
- Chemical Name:Reaxys ID: 3623864
- CAS:129385-61-1
- MF:C17H10ClNO3
- Chemical Name:Olaparib Impurity D
- CAS:
- MF:
- Structure:
- Chemical Name:1-methylpyrrolidin-3-yl 2-(cyclopentyloxy)-2-phenylacetate
- CAS:
- MF:C18H25NO3
- Chemical Name:Cabozantinib impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Loratadine Impurity 2
- CAS:
- MF:C22H23ClN2O2
- Structure:
- Chemical Name:Metoprolol Impurity 1
- CAS:
- MF:C15H25NO3
- Chemical Name:Pitavastatin Impurity 1
- CAS:
- MF:
- Chemical Name:Trifluridine Impurity 3
- CAS:
- MF:
- Chemical Name:Vonoprazan Impurity 1
- CAS:
- MF:
- Chemical Name:Vonoprazan Impurity 4
- CAS:
- MF:
- Chemical Name:Cinacalcet impurity K
- CAS:
- MF:
- Structure:
- Chemical Name:Valsartan Impurity 13
- CAS:
- MF:C24H29N5O3
- Structure:
- Chemical Name:Valsartan Impurity 27
- CAS:
- MF:C24H29N5O3
- Chemical Name:Etoricoxib Impurity 6
- CAS:
- MF:
- Chemical Name:Ezetimibe impurity 3
- CAS:
- MF:
- Chemical Name:Apremilast Impurity C
- CAS:
- MF:
- Structure:
- Chemical Name:bis(1-benzylpiperidin-3-yl) 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
- CAS:166808-97-5
- MF:C16H16N2O6
- Structure:
- Chemical Name:Ticagrelor Imp.J
- CAS:2248538-63-6
- MF:C14H20ClN5O4S
- Structure:
- Chemical Name:Vortioxetine Imp.E
- CAS:508233-77-0
- MF:C18H22N2S
- Structure:
- Chemical Name:(3R,4S)-1-(4-fluorophenyl)-3-((S)-3-hydroxy-3-(p-tolyl)propyl)-4-(4-hydroxyphenyl)azetidin-2-one
- CAS:1700622-07-6
- MF:C25H24FNO3
- Chemical Name:Topiroxostat Impurity 1
- CAS:
- MF:
- Chemical Name:Oxcarbazepine Impurity3
- CAS:
- MF:
- Chemical Name:Mosapride IMP
- CAS:
- MF:
- Structure:
- Chemical Name:4-Ethoxy Paroxetine
- CAS:606968-04-1
- MF:C21H25NO4
- Structure:
- Chemical Name:Methylene-Bis Paroxetine
- CAS:1292846-10-6
- MF:C39H40F2N2O6
- Structure:
- Chemical Name:Trelagliptin Impurity X
- CAS:1938080-44-4
- MF:C18H22FN5O3
- Structure:
- Chemical Name:Afatinib Impurity 19
- CAS:1245555-42-3
- MF:C21H21ClFN5O2
- Chemical Name:Cefoxitin Sodium impurity
- CAS:
- MF:
- Structure:
- Chemical Name:(1S,2S,3S)-Aprepitant
- CAS:1242175-40-1
- MF:C23H21F7N4O3
- Structure:
- Chemical Name:2-{[(methoxycarbonylmethyl)(toluene-4-sulfonyl)amino]methyl}-4-phenoxybenzoic acid methyl ester
- CAS:1455091-06-1
- MF:C25H25NO7S
- Chemical Name:Nicorandil Impurity E
- CAS:
- MF:
- Chemical Name:Prednicarbate Impurity G
- CAS:
- MF:
- Chemical Name:Anastrozole iMpurity F
- CAS:
- MF:
- Chemical Name:Ondansetron IMpurity 6
- CAS:
- MF:
- Chemical Name:MeropeneM iMpurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Macitentan Impurity 33
- CAS:2089065-77-8
- MF:C28H32Br2N8O6S2
- Chemical Name:Cefminox Impurity 5
- CAS:
- MF:
- Chemical Name:Alogliptin Impurity 20
- CAS:
- MF:
- Structure:
- Chemical Name:Cyclobenzaprine Impurity 3
- CAS:24167-44-0
- MF:C15H11BrO
- Structure:
- Chemical Name:Emtricitabine Impurity 16
- CAS:1160303-44-5
- MF:C8H10FN3O4S
- Chemical Name:Etoricoxib Impurity 44
- CAS:
- MF:
- Structure:
- Chemical Name:Irbesartan Impurity 15
- CAS:
- MF:C25H28N6O
- Chemical Name:Linagliptin Impurity 54
- CAS:
- MF:
- Chemical Name:Ornidazole Impurity 13
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 44
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 51
- CAS:
- MF:
- Chemical Name:Palbociclib Impurity 47
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 98
- CAS:
- MF:
- Structure:
- Chemical Name:Sildenafil Impurity 38
- CAS:
- MF:C22H30N6O4S
- Chemical Name:Tenofovir Impurity 70
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 122
- CAS:
- MF:
- Structure:
- Chemical Name:Tofacitinib Impurity 111
- CAS:2374700-37-3
- MF:C27H31N5O2S
- Chemical Name:Trelagliptin Impurity 41
- CAS:
- MF:
- Chemical Name:Carbocistein Impurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Ranitidine impurity F
- CAS:
- MF:C13H22N4O3S
- Chemical Name:Beclometasone Impurity B
- CAS:
- MF: