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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Afatinib impurity 82
- CAS:
- MF:
- Chemical Name:Afatinib impurity 82
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 51
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 42
- CAS:
- MF:
- Structure:
- Chemical Name:Org49095
- CAS:2412952-95-3
- MF:C71H111NaO48S8
- Chemical Name:Clopidogrel Impurity 55
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 43
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 75
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 73
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity 69
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 65
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 59
- CAS:
- MF:
- Structure:
- Chemical Name:BJQMFFOQQWEWAF-DGBYXFBUSA-N
- CAS:1709825-83-1
- MF:C31H41ClO8
- Structure:
- Chemical Name:4-amino-5-ethylsulfonyl-2-methoxy-N-[[1-(1,1,2,2,2-pentadeuterioethyl)pyrrolidin-2-yl]methyl]benzamide
- CAS:1216626-17-3
- MF:C17H22D5N3O4S
- Structure:
- Chemical Name:3-Oxo Atorvastatin tert-Butyl Ester
- CAS:134394-98-2
- MF:C37H41FN2O5
- Structure:
- Chemical Name:2-AMino-5-(trifluoroMethoxy)phenyl Thiocyanate
- CAS:1391054-04-8
- MF:C8H5F3N2OS
- Structure:
- Chemical Name:3-cyclopropyl-1-(2-fluoro-4-iodophenyl)-6,8-diMethyl-2,4,7-trioxo-1,2,3,4,7,8-hexahydropyrido[2,3-d]pyriMidin-5-yl 4-Methylbenzenesulfonate
- CAS:871700-32-2
- MF:C25H21FIN3O6S
- Structure:
- Chemical Name:4-(4-fluoro-3-(piperazine-1-carbonyl)benzyl)phthalazin-1(2H)-one
- CAS:763111-47-3
- MF:C20H19FN4O2
- Structure:
- Chemical Name:(1S,2S,3R,5S)-3-(7-(((1R,2S)-2-(4-fluorophenyl)cyclopropyl)amino)-5-(propylthio)-3H-[1,2,3]triazolo[4,5-d]pyrimidin-3-yl)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol
- CAS:
- MF:C23H29FN6O4S
- Structure:
- Chemical Name:(5-Ethyl-1H-imidazol-4-yl)methanol
- CAS:38603-74-6
- MF:C6H10N2O
- Structure:
- Chemical Name:(Z)-1-(6-methylpyridin-3-yl)-2-(4-(methylsulfonyl)phenyl)ethanone oxime
- CAS:1810761-43-3
- MF:C15H16N2O3S
- Structure:
- Chemical Name:tert-butyl 2-((4R,6S)-6-(2-aminoethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetate
- CAS:
- MF:C14H27NO4
- Chemical Name:Apixaban Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:ethylidene phthalide
- CAS:61658-90-0
- MF:C10H8O2
- Structure:
- Chemical Name:6-amino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b]pyridin-3-yl) -7-methyl-7,9-dihydro-8H-purin-8-one
- CAS:1361569-18-7
- MF:C19H15FN8O
- Structure:
- Chemical Name:5-(TRIFLUOROMETHYL)-3-P-TOLYL-1H-PYRAZOLE
- CAS:219986-64-8
- MF:C11H9F3N2
- Chemical Name:Cefminox Impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:Amlodipine Impurity 25
- CAS:
- MF:C26H31ClN2O8S
- Chemical Name:Axitinib Impurity 13
- CAS:
- MF:
- Chemical Name:Axitinib Impurity 18
- CAS:
- MF:
- Chemical Name:Erlotinib Impurity 38
- CAS:
- MF:
- Chemical Name:Etoricoxib Impurity 31
- CAS:
- MF:
- Structure:
- Chemical Name:LORATADINE IMPURITY F
- CAS:
- MF:C22H23ClN2O2
- Chemical Name:ZIDOVUDINE IMPURITY A
- CAS:
- MF:
- Structure:
- Chemical Name:Propanoic acid, 2-[[(Z)-[1-(2-amino-4-thiazolyl)-2-[[(2S,3S)-2-methyl-4-oxo-1-sulfo-3-azetidinyl]amino]-2-oxoethylidene]amino]oxy]-2-methyl-, 1-(1,1-dimethylethyl) ester
- CAS:330944-50-8
- MF:C17H25N5O8S2
- Structure:
- Chemical Name:Canagliflozin Peroxide Impurity
- CAS:2247196-28-5
- MF:C24H25FO7S
- Structure:
- Chemical Name:(αR)-α-Methyl-N-[3-[3-(trifluoromethyl)phenyl]propyl]-2-naphthalenemethanamine Hydrochloride
- CAS:2200269-28-7
- MF:C22H23ClF3N
- Structure:
- Chemical Name:2-(4-Fluorophenyl)-δ-hydroxy-5-(1-methylethyl)-β-oxo-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrole-1-heptanoic Acid 1,1-Dimethylethyl Ester
- CAS:947262-20-6
- MF:C37H41FN2O5
- Chemical Name:Atorvastatin Impurity E Intermediate
- CAS:
- MF:
- Chemical Name:Ceftazidime Double Mother Nucleus Impurity
- CAS:
- MF:
- Chemical Name:Cefuroxime Sodium Trans Impurity I，(E)-Cefuroxime Sodium Impurity I
- CAS:
- MF:
- Chemical Name:Faropenem Degradation Impurity B
- CAS:
- MF:
- Chemical Name:2-chloro-1-(5-isopropoxy-5H-chromeno[2,3-b]pyridin-7-yl)propan-1-one
- CAS:
- MF:
- Structure:
- Chemical Name:Oxacillin Impurity 1
- CAS:36231-30-8
- MF:C19H19N3O6S
- Chemical Name:Brivaracetam Impurity 33
- CAS:
- MF:
- Structure:
- Chemical Name:Arformoterol Impurity 24
- CAS:477552-93-5
- MF:C19H24N2O3
- Structure:
- Chemical Name:Pregabalin Impurity 99
- CAS:949890-75-9
- MF:C16H23NO4
- Structure:
- Chemical Name:Roxatidine Impurity 9
- CAS:87327-60-4
- MF:C4H6O4
- Chemical Name:Regofenib impurity K
- CAS:
- MF:
- Chemical Name:Chlorpheniramine Impurity 4
- CAS:
- MF:
- Chemical Name:Peramivir Impurity 43
- CAS:
- MF:
- Structure:
- Chemical Name:N-(4-BROMOBUTYL)-7-(4-BROMOBUTOXY)-QUINOLINE-2(1H)-ONE
- CAS:1076199-56-8
- MF:C17H21Br2NO2
- Structure:
- Chemical Name:7-methoxy-3,4-dihydro-1-naphthalenylacetonitrile
- CAS:861960-34-1
- MF:C13H13NO
- Structure:
- Chemical Name:METHYL 2-[(2,5-DICHLOROBENZOYL)AMINO]ACETATE
- CAS:338965-44-9
- MF:C10H9Cl2NO3
- Structure:
- Chemical Name:Cholecalciferol Impurity A
- CAS:22350-41-0
- MF:C27H44O
- Structure:
- Chemical Name:1H-Indeno[5,4-f]quinoline-7-carboxamide, N-[2,5-bis(trifluoromethyl)phenyl]-2,4a,4b,5,6,6a,7,8,9,9a,9b,10-dodecahydro-4a,6a-dimethyl-2-oxo-, (4aR,4bS,6aS,7R,9aS,9bS)-
- CAS:3088800-46-5
- MF:C27H28F6N2O2
- Structure:
- Chemical Name:Betaxolol EP Impurity A
- CAS:67193-95-7
- MF:C14H23NO2
- Structure:
- Chemical Name:3,5-Bis(benzyloxy)benzoic acid benzyl ester
- CAS:50513-72-9
- MF:C28H24O4
- Structure:
- Chemical Name:[(2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)amino]methanesulfonic acid
- CAS:117-38-4
- MF:C12H15N3O4S
- Structure:
- Chemical Name:3-OXO-3,4-DIHYDROPYRAZINE-2-CARBONITRILE
- CAS:81411-78-1
- MF:C5H3N3O
- Structure:
- Chemical Name:RP 48497 (Eszopiclone Impurity C)
- CAS:148891-53-6
- MF:C11H7ClN4O
- Structure:
- Chemical Name:3-(1-methyl-1H-indole-3-carbonyl)hexanedioic acid
- CAS:1352491-75-8
- MF:C16H17NO5
- Structure:
- Chemical Name:Decladinose Roxithromycin (Roxithromycin Impurity B)
- CAS:214902-82-6
- MF:C33H62N2O12
- Structure:
- Chemical Name:3-chloro-5-((1-((4-methyl-1-((4-methyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-3-yl)methyl)-2-oxo-4-(trifluoromethyl)-1,2-dihydropyridin-3-yl)oxy)benzonitrile
- CAS:2054541-33-0
- MF:C21H16ClF3N8O4
- Chemical Name:Nicorandil Impurity 6
- CAS:
- MF:
- Chemical Name:tirofiban Impurity 1 DIHCl
- CAS:
- MF:
- Structure:
- Chemical Name:Fingolimod 2-Phenethyl Analog
- CAS:851039-25-3
- MF:C35H57NO2
- Structure:
- Chemical Name:Ritonavir EP Impurity O
- CAS:1414933-81-5
- MF:C37H48N6O5S2
- Structure:
- Chemical Name:Entecavir Impurity 17(Entecavir EP Impurity C)
- CAS:2204369-23-1
- MF:C12H15N5O4
- Structure:
- Chemical Name:Gemcitabine Impurity 9
- CAS:2174019-90-8
- MF:C16H15F2N3O5
- Structure:
- Chemical Name:Sacubitril
- CAS:1361408-17-4
- MF:C18H20ClNO2
- Chemical Name:Empagliflozin Impurity 43
- CAS:
- MF:
- Structure:
- Chemical Name:1-tosyl-1,4,8,11-tetraazacyclotetradecane trihydrochloride
- CAS:128495-30-7
- MF:C17H31ClN4O2S
- Structure:
- Chemical Name:Fluconazole
- CAS:163921-62-8
- MF:C13H10F2N6
- Structure:
- Chemical Name:4-(4-chlorothiophen-2-yl)-5-(4-cyclohexylpiperazin-1-yl)thiazol-2-amine
- CAS:570407-42-0
- MF:C17H23ClN4S2
- Structure:
- Chemical Name:Vecuronium Bromide EP Impurity F
- CAS:18668-29-6
- MF:C26H41NO3
- Structure:
- Chemical Name:Imidafenacin Related Compound 11
- CAS:170105-09-6
- MF:C19H17N3
- Structure:
- Chemical Name:4-[3-(Hydroxymethyl)phenoxy]benzonitrile
- CAS:888967-63-3
- MF:C14H11NO2
- Structure:
- Chemical Name:Acetaminophen Impurity B
- CAS:98966-17-7
- MF:C16H16N2O4
- Structure:
- Chemical Name:Furosemide Impurity 2
- CAS:
- MF:C12H11ClN2O5S
- Chemical Name:Ribavirin Impurity I
- CAS:
- MF:
- Chemical Name:Silodosin Impurity 2
- CAS:
- MF:
- Chemical Name:Tenofovir Impurity 52
- CAS:146297-30-5
- MF:
- Structure:
- Chemical Name:Amifostine Impurity 7
- CAS:174397-83-2
- MF:C7H16Br2N2
- Structure:
- Chemical Name:Amphotericin X1 (13-O-Methyl Amphotericin B)
- CAS:136135-57-4
- MF:C48H75NO17
- Chemical Name:Bendamustine Impurity 31
- CAS:
- MF:
- Structure:
- Chemical Name:Carbidopa Impurity 2
- CAS:1361017-74-4
- MF:C11H16N2O4
- Chemical Name:Cefazolin Impurity 2
- CAS:
- MF:
- 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