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Pharmaceutical Impurity Reference Standards
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- 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:1,4,7,10-Tetraazacyclododecane-1,7-diacetic acid
- 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: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:
- 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
- Structure:
- Chemical Name:Donepezil Impurity 3
- CAS:1023500-88-0
- MF:C24H27NO4
- Structure:
- Chemical Name:Fesoterodine Related Impurity 4
- CAS:214601-12-4
- MF:C22H29NO2
- Structure:
- Chemical Name:Prasugrel Impurity 14 Maleate
- CAS:1373350-60-7
- MF:C24H25BrFNO7S
- Structure:
- Chemical Name:Sofosbuvir Impurity 32
- CAS:1157884-58-6
- MF:C20H17FO6
- Structure:
- Chemical Name:Torsemide Related Compound 1
- CAS:947327-54-0
- MF:C13H13N3O2S
- Structure:
- Chemical Name:Vortioxetine Impurity 3
- CAS:508233-82-7
- MF:C17H20N2S
- Structure:
- Chemical Name:CYCLOPENTYL BENZOATE
- CAS:32651-38-0
- MF:C12H14O2
- Structure:
- Chemical Name:4,5-DICHLOROTHIOPHENE-2-CARBOXYLIC ACID
- CAS:31166-29-7
- MF:C5H2Cl2O2S
- Structure:
- Chemical Name:N,O-Dibenzylated formoterol
- CAS:43229-70-5
- MF:C33H36N2O4
- Chemical Name:Entacapone
- CAS:
- MF:
- Structure:
- Chemical Name:nifedipine iMpurity
- CAS:
- MF:C19H22N2O6
- Chemical Name:Linagliptin Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Dehydropitavastatin ethyl ester
- CAS:254452-91-0
- MF:C27H26FNO4
- Structure:
- Chemical Name:(S)-2-(2-oxo-4-propyl-2,5-dihydro-1H-pyrrol-1-yl)butanamide
- CAS:357338-13-7
- MF:C11H18N2O2
- Chemical Name:Linagliptin Impurity V
- CAS:
- MF:
- Structure:
- Chemical Name:methyl 2-(4-(2-chloroethyl)phenyl)-2-methylpropanoate
- CAS:1181267-33-3
- MF:C13H17ClO2
- Structure:
- Chemical Name:(2RS)-1-bromo-2-(2,4-difluorophenyl)-3-(1H-1,2,4-triazol-1-yl)propan-2-ol
- CAS:150194-52-8
- MF:C11H10BrF2N3O
- Structure:
- Chemical Name:(S)-2-(((1R,2S,5S)-2-(2-((5-chloropyridin-2-yl)amino)-2-oxoacetamido)-5-(dimethylcarbamoyl)cyclohexyl)carbamoyl)-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine 5-oxide
- CAS:
- MF:C24H30ClN7O5S
- Chemical Name:Etoricoxib Impurity 18
- CAS:
- MF:
- Structure:
- Chemical Name:Ibrutinib Impurity 4
- CAS:1807619-68-6
- MF:C17H12ClN5O
- Chemical Name:Imatinib Impurity 3
- CAS:
- MF:
- Chemical Name:Mirabegron Impurity 16
- CAS:
- MF:
- Chemical Name:Olaparib Impurity 2
- CAS:
- MF:
- Structure:
- Chemical Name:Sofosbuvir Impurity 7
- CAS:1884385-12-9
- MF:C20H19FO6
- Structure:
- Chemical Name:Vonoprazan Impurity 3
- CAS:928325-41-1
- MF:C17H15F2N3O2S
- Chemical Name:Cinacalcet Impurity 22
- CAS:
- MF:
- Chemical Name:Dapagliflozin Impurity C
- CAS:
- MF:
- Chemical Name:Dasatinib Impurity E
- CAS:
- MF:
- Chemical Name:Ixazomib Impurity
- CAS:
- MF:
- Chemical Name:Nevirapine Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Omarigliptin Impurity
- CAS:1819364-01-6
- MF:C16H18F2N4O
- Structure:
- Chemical Name:Palbociclib Impurity 8
- CAS:827022-31-1
- MF:C31H41N7O4
- Structure:
- Chemical Name:Sitagliptin EP Impurity C
- CAS:1345822-86-7
- MF:C16H19F5N5O5P
- Chemical Name:Trifluridine Impurity
- CAS:2086328-10-9
- MF:
- Chemical Name:Valsartan related compound H
- CAS:
- MF:
- Structure:
- Chemical Name:Vildagliptin Related Compound H
- CAS:2253194-13-5
- MF:C12H16N4O
- Chemical Name:Moxifloxacin Impurity 7
- CAS:
- MF:
- Structure:
- Chemical Name:(R)-6-Benzyloxy-8-(oxiran-2-yl)-4H-benzo[1,4]oxazin-3-one
- CAS:869478-12-6
- MF:C17H15NO4
- Structure:
- Chemical Name:Merariveron impurity D
- CAS:
- MF:C26H28N6O3S2
- Chemical Name:Cefazolin impurity E
- CAS:
- MF:
- Chemical Name:Lamivudine Impurity Mixture
- CAS:
- MF:
- Structure:
- Chemical Name:Rifaximin impurity B
- CAS:1351775-04-6
- MF:C43H49N3O11
- Structure:
- Chemical Name:4-(3-(Piperidin-1-yl)propoxy)benzoic acid
- CAS:767286-87-3
- MF:C15H21NO3
- Structure:
- Chemical Name:5-Chloro-3-sulfino-2-thiophenecarboxylic acid
- CAS:187746-97-0
- MF:C5H3ClO4S2
- Structure:
- Chemical Name:ethyl (S)-10-fluoro-3-methyl-7-oxo- 2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate
- CAS:431058-46-7
- MF:C15H14FNO4
- Structure:
- Chemical Name:methyl (Z)-3-(((4-(methylamino)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate
- CAS:
- MF:C24H21N3O3
- Structure:
- Chemical Name:Isavuconazole Impurity 11
- CAS:2732924-99-9
- MF:C10H16ClN3O2
- Structure:
- Chemical Name:Levosimendan Impurity 2
- CAS:103416-88-2
- MF:C11H12N2O2
- Structure:
- Chemical Name:Aprepitant EP Impurity B
- CAS:2206606-86-0
- MF:C29H25F7N4O3
- Structure:
- Chemical Name:Famotidine EP Impurity A
- CAS:88061-72-7
- MF:C8H15N7O2S3
- Structure:
- Chemical Name:Meloxicam EP Impurity D
- CAS:1331636-17-9
- MF:C16H17N3O4S2
- Structure:
- Chemical Name:Erythromycin Impurity
- CAS:40554-78-7
- MF:C37H65NO12