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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Fulvestrant Impurity 12
- CAS:
- MF:
- Chemical Name:Linagliptin Impurity 56
- CAS:
- MF:
- Chemical Name:Linagliptin Impurity 61
- CAS:
- MF:
- Structure:
- Chemical Name:Ornidazole Impurity 16
- CAS:1565482-62-3
- MF:C7H11ClN2O
- Chemical Name:Oseltamivir Impurity 46
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 53
- CAS:
- MF:
- Chemical Name:Palbociclib Impurity 66
- CAS:
- MF:
- Structure:
- Chemical Name:Peramivir Impurity 13
- CAS:2641684-79-7
- MF:C13H27ClN4O3
- Chemical Name:Pimecrolimus Impurity 2
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 81
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 102
- CAS:
- MF:
- Chemical Name:Tazobactam Impurity 14
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 124
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 113
- CAS:
- MF:
- Chemical Name:Voriconazole Impurity 20
- CAS:
- MF:
- Chemical Name:Carbocistein Impurity F
- CAS:
- MF:
- Chemical Name:Cilastatin EP Impurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Olaparib Impurity 14
- CAS:2250242-62-5
- MF:C36H28F2N6O4
- Structure:
- Chemical Name:Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide
- CAS:24683-26-9
- MF:C12H13NO5S
- Structure:
- Chemical Name:Sugammadex
- CAS:1378831-29-8
- MF:C6H10O3S2
- Structure:
- Chemical Name:Petunidin 3-O-glucoside
- CAS:71991-88-3
- MF:C22H23O12+
- Structure:
- Chemical Name:1-(2,3-Dihydro-1,4-benzodioxin-2-ylcarbonyl)piperazine hydrochloride
- CAS:70918-74-0
- MF:C13H17ClN2O3
- Structure:
- Chemical Name:[4-[2-[(4-chlorobenzoyl)amino]ethyl]phenyl] 4-chlorobenzoate
- CAS:41859-56-7
- MF:C22H17Cl2NO3
- Structure:
- Chemical Name:N-(2,4-DICHLORO-5-HYDROXYPHENYL)ACETAMIDE
- CAS:67669-19-6
- MF:C8H7Cl2NO2
- Chemical Name:Brimonidine Impurity B
- CAS:
- MF:
- Chemical Name:Diquafosol Impurity C
- CAS:
- MF:
- Chemical Name:Bortezomib Impurity 19
- CAS:
- MF:
- Chemical Name:Apixaban Impurity 40
- CAS:
- MF:
- Chemical Name:Axitinib Impurity 3
- CAS:
- MF:
- Chemical Name:Sofosbuvir Impurity 10
- CAS:
- MF:
- Structure:
- Chemical Name:Venlafaxine Impurity 10
- CAS:1997279-63-6
- MF:C17H27NO2
- Chemical Name:Dapoxetine Impurity 3
- CAS:
- MF:
- Chemical Name:Regorafenib Impurity 16
- CAS:
- MF:
- Chemical Name:Topiroxostat Impurity 7
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 12
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 16
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 22
- CAS:
- MF:
- Chemical Name:Milrinone Impurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:Caspofungin Impurity 4
- CAS:258510-40-6
- MF:C49H78N8O17
- Chemical Name:Canagliflozin Impurity 27
- CAS:
- MF:
- Chemical Name:Loxoprofen Impurity 1
- CAS:
- MF:
- Chemical Name:Febuxostat Impurity 54
- CAS:
- MF:
- Chemical Name:Silodosin Impurity B
- CAS:
- MF:
- Chemical Name:Cefminox Sodium impurity F
- CAS:
- MF:
- Chemical Name:Clindamycin Impurity F
- CAS:
- MF:
- Chemical Name:Fasudil iMpurity D
- CAS:
- MF:
- Structure:
- Chemical Name:2-((4R,6R)-6-(2-(2-(4-fluorophenyl)-5-isopropyl-3-phenyl-4-(phenylcarbamoyl)-1H-pyrrol-1-yl)ethyl)-2,2-dimethyl-1,3-dioxan-4-yl)acetic acid
- CAS:929540-41-0
- MF:C36H41CaFN2O5
- Chemical Name:Doxofylline iMpurity C
- CAS:
- MF:
- Structure:
- Chemical Name:Puerarin-4'-O-β-D-glucopyranoside
- CAS:117047-08-2
- MF:C27H30O14
- Structure:
- Chemical Name:N-Propyl-7,8-dimethoxy-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one
- CAS:2512208-76-1
- MF:C15H21NO3
- Chemical Name:4-Desmethyl 3-Methyl Vortioxetine Hydrochloride
- CAS:1293343-01-7
- MF:
- Structure:
- Chemical Name:OFLOXACIN N-OXIDE (MIXTURE OF DIASTEREOMERS)
- CAS:104721-52-0
- MF:C18H20FN3O5
- Structure:
- Chemical Name:4-[[2-(2-Amino-4-thiazolyl)acetyl]amino]-benzeneacetic Acid
- CAS:1365244-64-9
- MF:C13H13N3O3S
- Structure:
- Chemical Name:PEONIN CHLORIDE(SH)
- CAS:132-37-6
- MF:C28H33ClO16
- Structure:
- Chemical Name:Telmisartan tert-Butyl Ester
- CAS:144702-26-1
- MF:C37H38N4O2
- Structure:
- Chemical Name:Amido Ethyl Meloxicam (Meloxicam Impurity)
- CAS:881399-30-0
- MF:C16H17N3O4S2
- Structure:
- Chemical Name:(S)-Ethyl 2-((3S,5aS,9aS,10aS)-3-methyl-1,4-dioxodecahydropyrazino[1,2-a]indol-2(1H)-yl)pentanoate ,95%
- CAS:129970-98-5
- MF:C19H30N2O4
- Structure:
- Chemical Name:4'-(Difluoromethoxy)acetanilide
- CAS:22236-11-9
- MF:C9H9F2NO2
- Structure:
- Chemical Name:EthanediaMide, N1-(5-chloro-2-pyridinyl)-N2-[(1S,2S,4R)-4-[(diMethylaMino)carbonyl]-2-[[(4,5,6,7-tetrahydro-5-Methylthiazolo[5,4-c]pyridin-2-yl)carbonyl]aMino]cyclohexyl]-
- CAS:1255529-28-2
- MF:C24H30ClN7O4S
- Structure:
- Chemical Name:N-carbaMoyl-2-Methyl benzene sulfonaMide
- CAS:39051-77-9
- MF:C8H10N2O3S
- Structure:
- Chemical Name:Capecitabin iMpurity
- CAS:71609-08-0
- MF:C9H12FN3O4
- Structure:
- Chemical Name:2-(((3aS,4R,6S,6aR)-6-((5-amino-6-chloro-2-(propylthio)pyrimidin-4-yl)amino)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-yl)oxy)ethan-1-ol
- CAS:
- MF:C17H27ClN4O4S
- Structure:
- Chemical Name:Clindamycin impurity
- CAS:198080-64-7
- MF:C18H32N2O5S
- Chemical Name:Digoxin impurity
- CAS:
- MF:
- Chemical Name:Lamivudine impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Levothyroxine Sodium impurity
- CAS:27566-09-2
- MF:C14H21NO4
- Structure:
- Chemical Name:Dexchlorpheniramine impurity
- CAS:73775-50-5
- MF:C12H15ClN2
- Structure:
- Chemical Name:(S)-N-(2-(1-(3-ethoxy-4-hydroxyphenyl)-2-(methylsulfonyl)ethyl)-1,3-dioxoisoindolin-4-yl)acetamide
- CAS:1384441-38-6
- MF:C21H22N2O7S
- Structure:
- Chemical Name:(1R,2S,3S)-Aprepitant
- CAS:172822-28-5
- MF:C23H21F7N4O3
- Structure:
- Chemical Name:6-benzyloxy-8-((R)-2-chloro-1-hydroxy-ethyl)-4H-benzo[1,4]-oxazin-3-one
- CAS:869478-11-5
- MF:C17H16ClNO4
- Structure:
- Chemical Name:ethyl (41R,13aS)-13a-ethyl-2,3,41,5,6,13a-hexahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate
- CAS:77549-94-1
- MF:C22H26N2O2
- Chemical Name:Dolutegravir Impurity 2
- CAS:
- MF:
- Structure:
- Chemical Name:Lesinurad Impurity J
- CAS:1210330-64-5
- MF:C14H10BrN3O2S
- Structure:
- Chemical Name:2-CHLOROMETHYL-3-METHYL-4-(2,2,2-TRIFLUOROETHOXY)PYRIDINE
- CAS:128430-66-0
- MF:C9H9ClF3NO
- Structure:
- Chemical Name:1-(2,3-EPOXYPROPYL)-2-METHYL-5-NITROIMIDAZOLE
- CAS:16773-52-7
- MF:C7H9N3O3
- Chemical Name:Bendamustine Related Impurity 12
- CAS:
- MF:
- Chemical Name:Bendamustine Related Impurity 3
- CAS:
- MF:
- Structure:
- Chemical Name:Edoxaban Impurity 26 (1R,2S,4R)
- CAS:1255529-33-9
- MF:C21H30ClN5O5
- Structure:
- Chemical Name:Ezetimibe Impurity 36
- CAS:1809031-15-9
- MF:C39H46F2N2O5Si2
- Structure:
- Chemical Name:Linagliptin Impurity 29
- CAS:2074688-82-5
- MF:C58H58N16O6
- Structure:
- Chemical Name:Methylprednisolone Acetate EP Impurity H
- CAS:1968-76-9
- MF:C24H32O4
- Chemical Name:Rivaroxaban Impurity 44
- CAS:
- MF:
- Chemical Name:Sitafloxacin Impurity 3
- CAS:
- MF:
- Chemical Name:Tenofovir Impurity 39
- CAS:
- MF:
- Chemical Name:Ticagrelor Related Compound 82
- CAS:
- MF:
- Chemical Name:Vonoprazan Impurity 20
- CAS:
- MF:
- Structure:
- Chemical Name:N-(2,6-Dimethylphenyl)-4-[2-hydroxy-3-(4-methoxyphenoxy)propyl]-1-piperazineacetamide
- CAS:1393717-45-7
- MF:C24H33N3O4
- Structure:
- Chemical Name:methyl (4,6-diamino-2-(1-(2-fluorobenzyl)-1H-pyrazolo[3,4-b] pyridin-3-yl)pyrimidin-5-yl)(ethyl)carbamate
- CAS:1361570-27-5
- MF:C21H21FN8O2
- Chemical Name:Cefathiamidine Impurity G
- CAS:
- MF:
- Chemical Name:Olaparib Impurity P
- CAS:
- MF:
- Chemical Name:Ozagrel Impurity 1
- CAS:
- MF:
- Chemical Name:Pidotimod Impurity P
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 11
- CAS:
- MF:
- Chemical Name:Pramipexole Impurity 18
- CAS:
- MF:
- Chemical Name:Tenofovir disoproxil Impurity 18
- CAS:
- MF:
- Chemical Name:Tenofovir Impurity 50
- CAS:
- MF:
- Structure:
- Chemical Name:Darunavir
- CAS:1526916-57-3
- MF:C22H31N3O5S
- Structure:
- Chemical Name:(S)-3-(4-(2,5-dibromobenzyl)phenoxy)tetrahydrofuran
- CAS:
- MF:C17H16Br2O2