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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Cefminox Sodium Impurity 8
- CAS:
- MF:
- Chemical Name:Dapagliflozin Impurity 28
- CAS:
- MF:
- Structure:
- Chemical Name:Erlotinib Impurity 51
- CAS:115665-66-2
- MF:C8H6BrNO2
- Chemical Name:Oseltamivir Impurity 18
- CAS:
- MF:
- Chemical Name:Plerixafor Impurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Pregabalin Impurity 49
- CAS:1568110-05-3
- MF:C10H21NO2
- Structure:
- Chemical Name:Rivaroxaban Impurity 79
- CAS:1642601-00-0
- MF:C38H38N4O12
- Chemical Name:Rocuronium Bromide Impurity 37
- CAS:
- MF:
- Structure:
- Chemical Name:Rosuvastatin Impurity 4
- CAS:1899869-35-2
- MF:C19H22FN3O3S
- Structure:
- Chemical Name:5-Methyl-3-phenylisoxazole-4-carboxylic acid
- CAS:1136-45-4
- MF:C11H9NO3
- Chemical Name:Bendamustine Impurity 26
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity 26
- CAS:
- MF:
- Structure:
- Chemical Name:Edoxaban Impurity 37
- CAS:2081883-50-1
- MF:C14H27N3O3
- Chemical Name:Imatinib Impurity 10
- CAS:
- MF:
- Structure:
- Chemical Name:Levofloxacin Impurity 19
- CAS:
- MF:C18H20FN3O4
- Structure:
- Chemical Name:Olanzapine Impurity K
- CAS:
- MF:C17H20N4S
- Chemical Name:Ticagrelor Related Compound 55
- CAS:
- MF:
- Chemical Name:Ticagrelor Related Compound 73
- CAS:
- MF:
- Chemical Name:RocuroniuMbroMide iMpurity B
- CAS:
- MF:
- Structure:
- Chemical Name:(2S,4R)-5-(Biphenyl-4-yl)-4-[(tert-butoxycarbonyl)amino]-2-methylpentanoic acid
- CAS:1012341-54-6
- MF:C23H29NO4
- Structure:
- Chemical Name:Calcium bis[4-{[(1S,3R)-1-([1,1'-biphenyl]-4-ylmethyl)-3-methyl-4-oxo-4-(propan-2-yloxyl)butyl]amino}-4-oxobutanoate]
- CAS:
- MF:C50H60CaN2O10
- Structure:
- Chemical Name:3-(4-methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)benzamide
- CAS:917391-28-7
- MF:C12H10F3N3O
- Chemical Name:Alogliptin Impurity E
- CAS:
- MF:
- Chemical Name:Alogliptin Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Carbamic acid, N-[(1R)-2-[5-(2-fluoro-3-methoxyphenyl)-3-[[2-fluoro-6-(trifluoromethyl)phenyl]methyl]-3,6-dihydro-4-methyl-2,6-dioxo-1(2H)-pyrimidinyl]-1-phenylethyl]-, 1,1-dimethylethyl ester
- CAS:830346-51-5
- MF:C33H32F5N3O5
- Structure:
- Chemical Name:Baicalein 6-O-glucoside
- CAS:28279-72-3
- MF:C21H20O10
- Structure:
- Chemical Name:(2S,3R)-2-(2,4-difluorophenyl)-1-(1H-1,2,4-triazol-1-yl)butane-2,3-diol
- CAS:135272-36-5
- MF:C12H13F2N3O2
- Structure:
- Chemical Name:Cycloocta[b]pyridine, 2-(4-ethyl-1-piperazinyl)-5,6,7,8,9,10-hexahydro-4-phenyl-
- CAS:132810-75-4
- MF:C23H31N3
- Structure:
- Chemical Name:(R)-1-(3-(4-amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)piperidin-1-yl)propan-1-one
- CAS:1839099-22-7
- MF:C25H26N6O2
- Chemical Name:Vildagliptin Impurity 10
- CAS:
- MF:
- Structure:
- Chemical Name:Cefaclor Impurity 2
- CAS:722547-49-1
- MF:C17H18N2O3
- Chemical Name:Cefodizime Impurity F
- CAS:
- MF:
- Chemical Name:Olaparib Impurity F
- CAS:
- MF:
- Chemical Name:Ornidazole Impurity G
- CAS:
- MF:
- Chemical Name:Pidotimod Impurity L
- CAS:
- MF:
- Chemical Name:Tadalafil Impuirty 20
- CAS:
- MF:
- Chemical Name:Tenofovir Impurity 53
- CAS:
- MF:
- Structure:
- Chemical Name:(S)-3-(4-benzylphenoxy)tetrahydrofuran
- CAS:
- MF:C17H18O2
- Structure:
- Chemical Name:Ampicillin
- CAS:1207726-28-0
- MF:C24H26N4O5S
- Structure:
- Chemical Name:ethyl 2-(4-(sec-butoxy)-3-cyanophenyl)-4-methylthiazole-5- carboxylate
- CAS:2375033-35-3
- MF:C18H20N2O3S
- Structure:
- Chemical Name:(S)-Indacaterol
- CAS:1384188-70-8
- MF:C24H29ClN2O3
- Structure:
- Chemical Name:Aripiprazole Impurity 47
- CAS:2250242-47-6
- MF:C27H33Cl2N3O3
- Structure:
- Chemical Name:Aripiprazole Impurity 47
- CAS:2250242-47-6
- MF:C27H33Cl2N3O3
- Structure:
- Chemical Name:Cefminox Sodium Impurity 3
- CAS:1420072-83-8
- MF:C16H21N7O6S4
- Chemical Name:Edaravone Impurity 26
- CAS:152494-76-3
- MF:
- Structure:
- Chemical Name:Levofloxacin Impurity 24
- CAS:
- MF:C18H20FN3O4
- Chemical Name:Parecoxib N-Oxide
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 84
- CAS:
- MF:
- Chemical Name:Timolol EP Impurity I
- CAS:
- MF:
- Structure:
- Chemical Name:172967-64-5
- CAS:172967-64-5
- MF:C18H16ClNO3
- Structure:
- Chemical Name:Pregabalin Impurity PD0224377
- CAS:501665-97-0
- MF:C14H25NO6
- Chemical Name:Nintedanib Impurity 24
- CAS:
- MF:
- Structure:
- Chemical Name:2-(((3,4-dimethoxypyridin-2-yl)methyl)thio)-1H-benzo[d] imidazol-5-ol
- CAS:1166386-02-2
- MF:C15H15N3O3S
- Structure:
- Chemical Name:N-((2-(5-methyl-4-phenylisoxazol-3-yl)phenyl)sulfonyl)propionamide
- CAS:2304623-38-7
- MF:C19H18N2O4S
- Structure:
- Chemical Name:bis(2-(7-Methoxynaphthalen-1-yl)ethyl)aMine
- CAS:1623104-92-6
- MF:C26H28ClNO2
- Structure:
- Chemical Name:bis(2-(7-Methoxynaphthalen-1-yl)ethyl)aMine
- CAS:1623104-92-6
- MF:C26H28ClNO2
- Structure:
- Chemical Name:Methyl 2-oxo-3-((2'-(5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)biphenyl-4-yl)Methyl)-2,3-dihydro-1H-benzo[d]iMidazole-4-carboxylate
- CAS:1403474-78-1
- MF:C24H18N4O5
- Structure:
- Chemical Name:Thiazolylacetyl glycine oxiMe
- CAS:178949-03-6
- MF:C7H8N4O4S
- Structure:
- Chemical Name:3-O-Decladinosyl-6-O-Methylerythronolide A
- CAS:118058-74-5
- MF:C30H55NO10
- Structure:
- Chemical Name:Desmethyl Ranolazine
- CAS:755711-09-2
- MF:C23H31N3O3
- Structure:
- Chemical Name:P-[[(1S)-2-(6-AMino-9H-purin-9-yl)-1-Methylethoxy]Methyl]-phosphonic Acid Monoethyl Ester
- CAS:1255525-18-8
- MF:C11H18N5O4P
- Structure:
- Chemical Name:8-(2,3-Dichlorophenyl)-8-aza-5-azoniaspiro[4.5]decane BroMide
- CAS:795313-24-5
- MF:C14H19BrCl2N2
- Structure:
- Chemical Name:8-(2,3-Dichlorophenyl)-8-aza-5-azoniaspiro[4.5]decane BroMide
- CAS:795313-24-5
- MF:C14H19BrCl2N2
- Structure:
- Chemical Name:9-MethoxyMethyl Guanine
- CAS:1202645-50-8
- MF:C7H9N5O2
- Structure:
- Chemical Name:ClindaMycin 3-PalMitate
- CAS:68225-59-2
- MF:C34H63ClN2O6S
- Structure:
- Chemical Name:EltroMbopag Methyl Ester
- CAS:1246929-01-0
- MF:C26H24N4O4
- Structure:
- Chemical Name:ErythroMycin A 6,9-IMino Ether
- CAS:99290-97-8
- MF:C37H66N2O12
- Structure:
- Chemical Name:α,α'-Bis[(2-Methoxyphenoxy)Methyl]-1,4-piperazinediethanol
- CAS:333749-57-8
- MF:C24H34N2O6
- Structure:
- Chemical Name:Ticagrelor IMpurity E
- CAS:1402150-34-8
- MF:C26H30F2N6O5S
- Structure:
- Chemical Name:Benzenebutanoicacid,b-[[(1,1-diMethylethoxy)carbonyl]aMino]-2,4,5-trifluoro-,Methylester,(bR)-
- CAS:881995-73-9
- MF:C16H20F3NO4
- Structure:
- Chemical Name:Bosutinib Impurity 1
- CAS:1460227-29-5
- MF:C18H13Cl2N3O3
- Structure:
- Chemical Name:tert-butyl 4-cyclohexylpiperazine-1-carboxylate
- CAS:1224935-95-8
- MF:C15H28N2O2
- Chemical Name:Afatinib IMpurity D
- CAS:
- MF:
- Chemical Name:Afatinib IMpurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Avanafil iMpurity 1
- CAS:372117-54-9
- MF:C18H22ClN5O3
- Structure:
- Chemical Name:S,S-Efinaconazole
- CAS:164650-45-7
- MF:C18H22F2N4O
- Chemical Name:BendaMustine IMpurity
- CAS:
- MF:
- Structure:
- Chemical Name:Acetic acid, 2-chloro-2-[2-(2-Methoxyphenyl)hydrazinylidene]-, ethyl ester
- CAS:85014-68-2
- MF:C11H13ClN2O3
- Structure:
- Chemical Name:D-Alanine, N-[[P(S),2'R]-2'-cyano-2'-deoxy-2'-Methyl-P-phenyl-5'-cytidylyl]-, 1-Methylethyl ester
- CAS:1496552-28-3
- MF:C22H29FN3O9P
- Structure:
- Chemical Name:D-Glucitol, 1,5-anhydro-1-C-[4-Methyl-3-[(5-phenyl-2-thienyl)Methyl]phenyl]-, (1S)-
- CAS:842133-16-8
- MF:C24H26O5S
- Structure:
- Chemical Name:Phthalic acid, 3,3'-azoxydi- (8CI)
- CAS:22895-28-9
- MF:C16H10N2O9
- Structure:
- Chemical Name:(alphaE)-alpha-[(3,4-Dihydroxy-5-nitrophenyl)methylene]-beta-oxo-1-piperidinepropanenitrile
- CAS:1150310-15-8
- MF:C15H15N3O5
- Structure:
- Chemical Name:(2E)-2-Cyano-3-(3-ethoxy-4-hydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide
- CAS:857629-79-9
- MF:C16H19N3O5
- Structure:
- Chemical Name:(R,E)-ethyl 5-([1,1'-biphenyl]-4-yl)-4-((tert-butoxycarbonyl)aMino)-2-Methylpent-2-enoate
- CAS:149709-59-1
- MF:C25H31NO4
- Structure:
- Chemical Name:1-(3-AMinopropyl)-4-(2-Methoxyphenyl)piperazine 97%
- CAS:20529-23-1
- MF:C14H23N3O
- Structure:
- Chemical Name:(R)-3-((S)-5-(4-fluorophenyl)-5-hydroxypentanoyl)-4-phenyloxazolidin-2-one
- CAS:404874-94-8
- MF:C20H20FNO4
- Structure:
- Chemical Name:(S)-3-((S)-5-hydroxy-5-phenylpentanoyl)-4-phenyloxazolidin-2-one
- CAS:
- MF:C20H21NO4
- Structure:
- Chemical Name:Apixaban Impurity 20
- CAS:1421823-20-2
- MF:C27H29ClN4O5
- Structure:
- Chemical Name:Posaconazole iMpurity 4
- CAS:2125944-53-6
- MF:C30H35N5O3
- Structure:
- Chemical Name:Everolimus Ring-Opening Impurity
- CAS:1708118-13-1
- MF:C53H83NO14
- Structure:
- Chemical Name:Topiroxostat Impurity 6
- CAS:2044704-63-2
- MF:C7H8N4O2
- Structure:
- Chemical Name:Dienogest Impurity I
- CAS:65928-65-6
- MF:C20H27NO2
- Structure:
- Chemical Name:Febuxostat Impurity 8
- CAS:144060-62-8
- MF:C16H17NO4S
- Structure:
- Chemical Name:Lornoxicam Impurity 9
- CAS:70374-36-6
- MF:C6H6ClNO4S2
- Structure:
- Chemical Name:Ticagrelor Related Compound 3
- CAS:88756-83-6
- MF:C8H15NO3
- Structure:
- Chemical Name:135270-10-9
- CAS:135270-10-9
- MF:C12H11F2N3O
- Structure:
- Chemical Name:Tadalafil EP Impurity
- CAS:479545-76-1
- MF:C21H16N2O5
- Chemical Name:Vonoprazan Impurity C
- CAS:
- MF:
- Structure:
- Chemical Name:(5RS)-5-Ethyl-2,6-diimino-5-phenyl-1,2,5,6-tetrahydropyrimidin-4(3H)-one
- CAS:69125-70-8
- MF:C12H14N4O