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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:D-hydroxyphenylglycylamoxicillin)
- CAS:188112-75-6
- MF:C24H26N4O7S
- Structure:
- Chemical Name:2-(DiethylaMino)-N-(2,3-diMethylphenyl)acetaMide Hydrochloride
- CAS:857170-72-0
- MF:C14H23ClN2O
- Structure:
- Chemical Name:4-Hydroxy Darunavir
- CAS:313682-97-2
- MF:C27H37N3O8S
- Structure:
- Chemical Name:Deschloroaripiprazole
- CAS:203395-81-7
- MF:C23H28ClN3O2
- Structure:
- Chemical Name:O-[(Guanin-9-yl)Methyl] Acyclovir
- CAS:166762-90-9
- MF:C14H16N10O4
- Structure:
- Chemical Name:3-(4-Carboethoxy)phenyl propanal
- CAS:151864-81-2
- MF:C12H14O3
- Structure:
- Chemical Name:(2,6-Xylyloxy)acetyl Lopinavir
- CAS:943250-65-5
- MF:C47H58N4O7
- Structure:
- Chemical Name:(S)-IsotiMolol (TiMolol IMpurity B)
- CAS:158636-96-5
- MF:C13H24N4O3S
- Chemical Name:Afatinib IMpurity A
- CAS:
- MF:
- Chemical Name:Afatinib IMpurity G
- CAS:
- MF:
- Chemical Name:Articaine IMpurity F (Articaine Acid PropionaMide HCl)
- CAS:
- MF:
- Structure:
- Chemical Name:Avanafil iMpurity 4
- CAS:874482-97-0
- MF:C8H10ClNO.ClH
- Structure:
- Chemical Name:Clopidogrel IMpurity 4
- CAS:801319-16-4
- MF:C15H14ClNO2S
- Structure:
- Chemical Name:Dehydro Azelnidipine
- CAS:918659-10-6
- MF:C33H32N4O6
- Structure:
- Chemical Name:DiazepaM IMpurity F
- CAS:31269-33-7
- MF:C16H13ClN2O
- Chemical Name:LaMotrigine IMpurity
- CAS:
- MF:
- Chemical Name:piperacillinylaMpicillin
- CAS:
- MF:
- Chemical Name:Celecoxib iMpurity-B
- CAS:
- MF:
- Chemical Name:EMtricitabine iMpurity B
- CAS:
- MF:
- Structure:
- Chemical Name:(S,S)-1,7-diazatricyclo[7.3.0.07,11]dodecane-2,6,8,12-tetrone
- CAS:14842-41-2
- MF:C10H10N2O4
- Structure:
- Chemical Name:1-Hydroxy-7-Methoxy-1,2,3,4-tetrahydronaphthalene
- CAS:32820-10-3
- MF:C11H14O2
- Structure:
- Chemical Name:BroMhexine Hydrochloride iMpurity DN-(2-AMino-5-broMobenzyl)-N-MethylcyclohexanaMine Dihydrochloride
- CAS:132004-28-5
- MF:C14H21BrN2
- Structure:
- Chemical Name:2-(DiMethylcarbaMoyl)benzoic acid, 97%
- CAS:20320-37-0
- MF:C10H11NO3
- Structure:
- Chemical Name:Rac desmethyl citalopram hydrochloride
- CAS:97743-99-2
- MF:C19H19FN2O
- Structure:
- Chemical Name:rac-3-Oxo Atorvastatin SodiuM Salt
- CAS:1391052-00-8
- MF:C33H34FN2NaO5
- Structure:
- Chemical Name:2-Demethoxy-4-methoxy urapidil
- CAS:34661-79-5
- MF:C20H29N5O3
- Structure:
- Chemical Name:Ribavirin IMpurity F
- CAS:58151-87-4
- MF:C10H14N4O6
- Structure:
- Chemical Name:4-[-((-((4-(5-(Bis(2-hydroxyethyl)aMino)-1-Methyl-1H-benzo[d]iMidazol-2-yl)butanoyl)oxy)ethyl)(2-hydroxyethyl)aMino)-1-Methyl-1H-benzo[d]iMidazol-2-yl)butanic Acid
- CAS:1228551-91-4
- MF:C32H41Cl3N6O4
- Structure:
- Chemical Name:3-(6,7-Dihydro-2-Methyl-7-oxo-3-propyl-2H-pyrazolo[4,3-d]pyriMidin-5-yl)-4-ethoxy-benzenesulfonyl Chloride
- CAS:501120-42-9
- MF:C17H19ClN4O4S
- Structure:
- Chemical Name:(3R,4S)-rel-3-[(1,3-Benzodioxol-5-yloxy)Methyl]-4-(4'-fluoro[1,1'-biphenyl]-4-yl)-piperidine Hydrochloride
- CAS:1217655-87-2
- MF:C25H24FNO3.ClH
- Structure:
- Chemical Name:(16α)-16,17-[Butylidenebis(oxy)]-21-hydroxypregna-1,4-diene-3,11,20-trione
- CAS:216453-74-6
- MF:C25H32O6
- Structure:
- Chemical Name:6(S)-Hydroperoxy Simvastatin
- CAS:149949-01-9
- MF:C25H38O7
- Structure:
- Chemical Name:Russupteridine IV
- CAS:2535-20-8
- MF:C13H18N4O6
- Structure:
- Chemical Name:2-[(1-Benzylpiperidin-4-yl)hydroxyMethyl]-5,6-diMethoxyindan-1-one
- CAS:197010-20-1
- MF:C24H29NO4
- Structure:
- Chemical Name:5,6-trans-Ergocalciferol
- CAS:51744-66-2
- MF:C28H44O
- Structure:
- Chemical Name:(5R)-ethyl 5-((1R,3aS,7aR)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldiMethylsilyloxy)-2-Methylenecyclohexylidene)ethyl)-7a-Methyloctahydro-1H-inden-1-yl)hexanoate
- CAS:169900-32-7
- MF:C39H70O4Si2
- Structure:
- Chemical Name:2-isonicotinoyl-5,6-diMethoxy-2,3-dihydro-1H-inden-1-one
- CAS:923571-15-7
- MF:C17H15NO4
- Structure:
- Chemical Name:4-(2-nitrophenyl)Morpholin-3-one
- CAS:845729-41-1
- MF:C10H10N2O4
- Structure:
- Chemical Name:Irbesartan IMpurity E
- CAS:
- MF:C25H28N6O
- Structure:
- Chemical Name:LeflunoMide EP IMpurity G
- CAS:724429-16-7
- MF:C12H12N2O2
- Chemical Name:Telmisartan impurity C
- CAS:
- MF:
- Chemical Name:Itraconazole iMpurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Edoxaban Isomer (RRR)
- CAS:1255529-24-8
- MF:C24H30ClN7O4S
- Structure:
- Chemical Name:1-NaphthaleneacetaMide, 1,2,3,4-tetrahydro-7-Methoxy-
- CAS:92041-01-5
- MF:C13H17NO2
- Structure:
- Chemical Name:DO2A
- CAS:112193-75-6
- MF:C12H24N4O4
- Structure:
- Chemical Name:7-ethyl-5H-chroMeno[2,3-b]pyridin-5-one
- CAS:53944-31-3
- MF:C14H11NO2
- Structure:
- Chemical Name:2-Methyl-10H-thieno[2,3-b][1,5]benzodiazepin-4-aMine
- CAS:612503-08-9
- MF:C12H11N3S
- Chemical Name:IMp. A (EP): 8-Chloro-5,10-dihydro-11H-dibenzo[b,e][1,4]diazepin-11-one
- CAS:
- MF:
- Chemical Name:IMp. C (EP): 8-Chloro-11-(piperazin-1-yl)-5H- dibenzo[b,e][1,4]diazepine
- CAS:
- MF:
- Structure:
- Chemical Name:21-Dehydro-16α-hydroxy Prednisolone
- CAS:1188271-73-9
- MF:C21H26O6
- Structure:
- Chemical Name:(6α,11β)-11,20-Dihydroxy-6-Methyl-3-oxopregna-1,4,17(20)-trien-21-al
- CAS:1338549-02-2
- MF:C22H28O4
- Structure:
- Chemical Name:(1R)-2-chloro-1-(3,4-difluorophenyl)-1-ethanol
- CAS:1212376-05-0
- MF:C8H7ClF2O
- Structure:
- Chemical Name:2-[[(3aR,4S,6R,6aS)-6-[7-Chloro-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]tetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]-ethanol
- CAS:376608-75-2
- MF:C17H24ClN5O4S
- Structure:
- Chemical Name:Fluconazole IMpurity F
- CAS:
- MF:C13H12F2N6O
- Structure:
- Chemical Name:(S)-3-Methyl-1-(2-piperidin-1-ylphenyl)butylamine
- CAS:147769-93-5
- MF:C16H26N2
- Structure:
- Chemical Name:2-Benzylidene isobutyryl acetanilide
- CAS:125971-57-5
- MF:C19H19NO2
- Structure:
- Chemical Name:Isopropylamine hydrochloride
- CAS:15572-56-2
- MF:C3H10ClN
- Chemical Name:Roxadustat Impurity 17
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 20
- CAS:1002359-81-0
- MF:
- Chemical Name:Dolutegravir Impurity 19
- CAS:
- MF:
- Structure:
- Chemical Name:Metronidazole IMpurity (1-Methyl-4-Nitro-1H-IMidazole)
- CAS:143508-97-8
- MF:C2H3NO
- Structure:
- Chemical Name:benidipine
- CAS:119009-45-9
- MF:C28H31N3O6
- Structure:
- Chemical Name:(S)-Phenylephrine hydrochloride
- CAS:939-38-8
- MF:C9H14ClNO2
- Structure:
- Chemical Name:riboflavin 3',5'-bisphosphate
- CAS:86108-26-1
- MF:C17H22N4O12P2
- Structure:
- Chemical Name:6 beta-hydroxycortisol
- CAS:53-35-0
- MF:C21H30O6
- Structure:
- Chemical Name:16-hydroxyclarithromycin
- CAS:124412-58-4
- MF:C38H69NO14
- Structure:
- Chemical Name:4-Methyl-3-[[1-oxo-2-(propylamino)propyl]amino]-2-thiophenecarboxylic acid
- CAS:114176-52-2
- MF:C12H18N2O3S
- Structure:
- Chemical Name:Erlotinib IMpurity A
- CAS:1058132-82-3
- MF:C22H25N3O4
- Chemical Name:Apixaban iMpurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:cefaclor iMpurity C
- CAS:143059-69-2
- MF:C15H14ClN3O4S
- Chemical Name:ceftazidiMe iMpurity B
- CAS:1236700-64-3
- MF:
- Structure:
- Chemical Name:pidotiMod iMpurity D
- CAS:162148-15-4
- MF:C9H12N2O4S
- Structure:
- Chemical Name:Irinotecan Hydroxyl Acid
- CAS:142677-15-4
- MF:C22H22N2O6
- Structure:
- Chemical Name:CyclopropanaMine, 2-(4-fluorophenyl)-(hydrochloride)(1:1),(1R,2S)-
- CAS:1314324-00-9
- MF:C9H11ClFN
- Structure:
- Chemical Name:(1S,2S,3R,5S)-3-(7-(((1R,2S)-2-(3,4-difluorophenyl)cyclopropyl)aMino)-5-(propylsulfinyl)-3H-[1,2,3]triazolo[4,5-d]pyriMidin-3-yl)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol
- CAS:1644461-85-7
- MF:C23H28F2N6O5S
- Chemical Name:AtracuriuM IMpurity C (Mixture of DiastereoMers)
- CAS:86293-35-8
- MF:
- Chemical Name:AtracuriuM IMpurity E (cis-Quaternary Acid)
- CAS:
- MF:
- Chemical Name:AztreonaM IMpurity B
- CAS:
- MF:
- Chemical Name:Ceftriaxone IMpurit E
- CAS:
- MF:
- Structure:
- Chemical Name:Cetirizine IMpurity-6
- CAS:
- MF:C21H25ClN2O3
- Structure:
- Chemical Name:Cinacalcet IMpurity 10
- CAS:1809324-40-0
- MF:C29H28F3NO2S
- Chemical Name:Dasatinib IMpurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:Diacerein IMpurity F
- CAS:13928-72-8
- MF:C35H36O16
- Structure:
- Chemical Name:D-Valganciclovir Hydrochloride
- CAS:1393911-57-3
- MF:C14H23ClN6O5
- Chemical Name:Entecavir IMpurity E
- CAS:
- MF:
- Structure:
- Chemical Name:EzetiMibe IMpurity 1
- CAS:190595-66-5
- MF:C24H22FNO3
- Structure:
- Chemical Name:Flurbiprofen IMpurity B
- CAS:1797883-74-9
- MF:C18H17FO4
- Chemical Name:IMatinib DiPiperidine IMpurity
- CAS:
- MF:
- Chemical Name:levocetirizine IMpurity
- CAS:
- MF:
- Chemical Name:OseltaMivir IMpurity F
- CAS:
- MF:
- Chemical Name:RocuroniuM BroMide IMpurity 19
- CAS:
- MF:
- Structure:
- Chemical Name:S-(+)-O-DesMethyl-Venlafaxine-d6
- CAS:1062609-99-7
- MF:C16H25NO2
- Structure:
- Chemical Name:SalMeterol IMpurity F
- CAS:
- MF:C25H37NO4
- Structure:
- Chemical Name:Sitagliptin Defuoro IMpurity 4
- CAS:486459-98-7
- MF:C15H19F2NO4
- Chemical Name:Sulpiride IMpurity F
- CAS:
- MF:
- Structure:
- Chemical Name:trans-Ibuprofen IMpurity G
- CAS:1391054-15-1
- MF:C26H32O4
- Structure:
- Chemical Name:EthanediaMide iMpurity F
- CAS:480452-37-7
- MF:C16H22ClN5O3
- Chemical Name:Paroxetine IMpurity
- CAS:105813-23-8
- MF:
- Structure:
- Chemical Name:7-[(2-aMinoethyl)aMino] -1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
- CAS:
- MF:C14H16FN3O3
- Structure:
- Chemical Name:(S)-(1R,3s,5S)-8-Methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl 3-hydroxy-2-phenylpropanoate
- CAS:61616-97-5
- MF:C17H21NO3