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Pharmaceutical Impurity Reference Standards
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- Chemical Name:
- Oseltamivir Impurity 90
- Chemical Name:
- Oseltamivir Impurity 79
- Chemical Name:
- Oseltamivir Impurity 73
- Chemical Name:
- Oseltamivir Impurity 69
- Structure:
- Chemical Name:
- 10-methoxy-6-methylergoline-8beta-methanol
- CAS:
- 35121-60-9
- MF:
- C17H22N2O2
- Chemical Name:
- INDEX NAME NOT YET ASSIGNED
- CAS:
- 2514957-39-0
- MF:
- C16H16FN3O4
- Structure:
- Chemical Name:
- Propanoic acid, 2,2-dimethyl-, 4-[[[2-[[(2-methoxy-2-oxoethyl)amino]carbonyl]phenyl]amino]sulfonyl]phenyl ester
- CAS:
- 127373-95-9
- MF:
- C21H24N2O7S
- Chemical Name:
- Fulvestrant Impurity 1
- Chemical Name:
- CefazolinH020-02-I-02
- Structure:
- Chemical Name:
- (E)-3-[cyano(2,3-dichlorophenyl)methylene]carbazamidine
- CAS:
- 94213-24-8
- MF:
- C9H7Cl2N5
- Structure:
- Chemical Name:
- 5-Pyrimidinecarboxylic acid, 4-amino-6-[1-[(1R)-2-cyano-1-cyclopentylethyl]-1H-pyrazol-4-yl]-
- CAS:
- 2606144-44-7
- MF:
- C16H18N6O2
- Structure:
- Chemical Name:
- 3-Quinolinecarboxylic acid, 7-[(4aS,7aS)-1-acetyloctahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-
- CAS:
- 1395471-26-7
- MF:
- C23H26FN3O5
- Chemical Name:
- (1S,5R)-9-(4-fluorophenyl)-11-isopropyl-10-phenyl-1,2,6,7-tetrahydro-3H,5H-1,5-methanopyrrolo[1,2-e][1,5]oxazonin-3-one
- Structure:
- Chemical Name:
- N-[3-acetyl-4-(oxiranylmethoxy)phenyl]butyramide
- CAS:
- 28197-66-2
- MF:
- C15H19NO4
- Structure:
- Chemical Name:
- 8-isopropyl-8-azabicyclo[3.2.1]octan-3-one
- CAS:
- 3423-28-7
- MF:
- C10H17NO
- Chemical Name:
- Sitagliptin EP Impurity 4
- Structure:
- Chemical Name:
- 1-[3,5-bis(phenylmethoxy)phenyl]-2-bromoethan-1-one
- CAS:
- 28924-18-7
- MF:
- C22H19BrO3
- Structure:
- Chemical Name:
- Benzenesulfonic acid, 4-[2-(2-chloro-4-hydroxyphenyl)hydrazinyl]-
- CAS:
- 2174956-62-6
- MF:
- C12H11ClN2O4S
- Chemical Name:
- Anastrozole Impurity 13
- Chemical Name:
- Cefotiam impurity 07
- Structure:
- Chemical Name:
- benzo-1,3-dioxol-5-ol acetate
- CAS:
- 326-58-9
- MF:
- C9H8O4
- Structure:
- Chemical Name:
- 2-((4R,6S)-6-(chloromethyl)-2,2-dimethyl- 1,3-dioxan-4-yl)acetic acid
- CAS:
- 775571-58-9
- MF:
- C9H15ClO4
- Chemical Name:
- Ruxolitinib Impurity 1
- Chemical Name:
- Cefradine Impurity L
- Structure:
- Chemical Name:
- (8beta)-10methoxy-6-dimethylergoline-8-methanol-5-bromo-3-pyridinecarboxylate(ester)
- CAS:
- 35264-46-1
- MF:
- C23H24BrN3O3
- Chemical Name:
- Cephalexin Open-Ring Impurity
- Chemical Name:
- Urapidil Impurity 18
- Chemical Name:
- Flomoxef Impurity IV
- Chemical Name:
- NA
- Chemical Name:
- Cetrorelix Impurity 15
- Chemical Name:
- Brivaracetam Impurity 46
- Chemical Name:
- NA
- Chemical Name:
- Peramivir Intermediate Impurity 38
- Chemical Name:
- Ticagrelor impurity P drops
- Chemical Name:
- NA
- Chemical Name:
- Paclitaxel EP impurity drops
- Chemical Name:
- Ticagrelor impurity PDD
- Chemical Name:
- Bimatoprost Impurity S
- Structure:
- Chemical Name:
- BIS(2,6-DIPHENYLPHENOXY)NIOBIUM(V) CHLOR
- CAS:
- 699012-35-6
- MF:
- C42H32Cl3NbO2
- Chemical Name:
- Brivaracetam Impurity 62
- Chemical Name:
- Lumateperone Impurity 4
- Chemical Name:
- SugammadexImpurity021
- Chemical Name:
- Pabocillin Impurity 28
- Chemical Name:
- Cefmetazole Sodium Impurity C
- Chemical Name:
- Ceftriaxone Sodium Oxide Impurity
- Chemical Name:
- 2-[4-(Azidomethyl)phenyl]benzamide
- Structure:
- Chemical Name:
- 1H-Benzimidazole-7-carboxylic acid, 1-[[2'-[4,5-dihydro-4-[(5-methyl-2-oxo-1,3-dioxol-4-yl)methyl]-5-oxo-1,2,4-oxadiazol-3-yl][1,1'-biphenyl]-4-yl]methyl]-2-ethoxy-
- CAS:
- 1985638-55-8
- MF:
- C30H24N4O8
- Structure:
- Chemical Name:
- 2H-1,4-Benzoxazin-3(4H)-one, 8-[(1R)-2-bromo-1-hydroxyethyl]-6-(phenylmethoxy)-
- CAS:
- 2248125-51-9
- MF:
- C17H16BrNO4
- Structure:
- Chemical Name:
- Morpholine, 4-[4-(1,1-dimethylethoxy)-1,2,5-thiadiazol-3-yl]-
- CAS:
- 158636-99-8
- MF:
- C10H17N3O2S
- Chemical Name:
- Pemetrexed disodium Impurity 30
- Chemical Name:
- ONDANSETRON IMPURITY D
- Chemical Name:
- PERINDOPRIL IMPURITY A
- Structure:
- Chemical Name:
- (E)-Ceftiofur
- CAS:
- 120882-20-4
- MF:
- C19H17N5O7S3
- Chemical Name:
- Cefmetazole Impurity E
- Structure:
- Chemical Name:
- Azlocillin Opern-Ring Decarboxylation Impurity
- CAS:
- 99795-14-9
- MF:
- C19H25N5O5S
- Structure:
- Chemical Name:
- Cefotiam Impurity 1
- CAS:
- 2243596-87-2
- MF:
- C18H23N9O4S3
- Chemical Name:
- Eribulin Impurity 3
- Structure:
- Chemical Name:
- Brivaracetam Impurity 25
- CAS:
- 10547-88-3
- MF:
- C7H12O2
- Chemical Name:
- Peramivir Impurity 19
- Structure:
- Chemical Name:
- Diquafosol Impurity 13
- CAS:
- 211448-81-6
- MF:
- C18H28N4O29P6
- Structure:
- Chemical Name:
- Montelukast Sodium EP Impurity G
- CAS:
- 1428448-96-7
- MF:
- C35H37ClNNaO3S
- Structure:
- Chemical Name:
- Amifostine related impurities 2
- CAS:
- 17002-55-0
- MF:
- C8H21N3O
- Structure:
- Chemical Name:
- Oxacillin Impurity F
- CAS:
- 5053-35-0
- MF:
- C19H19N3O4S2
- Structure:
- Chemical Name:
- Peramivir Impurity 30
- CAS:
- 2758048-79-0
- MF:
- C20H36N2O6
- Chemical Name:
- NICERGOLINE IMP. D (EP): 5-BROMOPYRIDINE-3-CARBOXYLIC ACID
- Structure:
- Chemical Name:
- AMOXICILLIN TRIHYDRATE IMP. D (EP) AS SODIUM SALT:(4S)-2-[[[(2R)-2-AMINO-2-(4-HYDROXYPHENYL)ACETYL]AMINO]-CARBOXYMETHYL]-5,5-DIMETHYLTHIAZOLIDINE-4-CARBOXYLIC ACID SODIUM SALT (PENICILLOICACIDS OF AMO
- CAS:
- 1642629-94-4
- MF:
- C16H21N3O6S
- Structure:
- Chemical Name:
- 4-CHLORO-6-(2-CHLORO-ETHOXY)-7-(2-METHOXY-ETHOXY)-QUINAZOLINE
- CAS:
- 183322-19-2
- MF:
- C13H14Cl2N2O3
- Structure:
- Chemical Name:
- 2-PIPERAZINE-4-AMINO-6,7-DIMETHOXY QUINOLINE HYDROCHLORIDE
- CAS:
- 84050-22-6
- MF:
- C14H20ClN5O2
- Structure:
- Chemical Name:
- 2-CHLORO-N-(2,3-DIMETHYL-PHENYL)-ACETAMIDE
- CAS:
- 2564-07-0
- MF:
- C10H12ClNO
- Structure:
- Chemical Name:
- 1,4-dihydro-2,6-dimethyl-4-(3'-nitrophenyl)-pyridine-3,5-dicarboxylic acid monoisopropyl ester
- CAS:
- 116983-17-6
- MF:
- C18H20N2O6
- Chemical Name:
- Cabozantinib impurity 37
- 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:
- Bimatoprost Impurity 17
- Chemical Name:
- Bumetanide Impurity 10
- Chemical Name:
- Cefoxitin EP Impurity E (R-methoxy cefoxitin)
- Structure:
- Chemical Name:
- 4(1H)-Pyrimidinone, 5-amino-6-chloro-2-(propylthio)-
- CAS:
- 2512210-21-6
- MF:
- C7H10ClN3OS
- Structure:
- Chemical Name:
- Carbamic acid, N-[(1S)-1-methyl-2-oxo-2-[3-(phenylmethoxy)phenyl]ethyl]-, phenylmethyl ester
- CAS:
- 2151127-61-4
- MF:
- C24H23NO4
- Structure:
- Chemical Name:
- 1-(chloromethyl)-4-(dichloromethyl)benzene
- CAS:
- 7398-44-9
- MF:
- C8H7Cl3
- Structure:
- Chemical Name:
- 4,4'-(propane-1,3-diyl)bismorpholine
- CAS:
- 48152-09-6
- MF:
- C11H22N2O2
- Chemical Name:
- Ruxolitinib ImpurityABCDEFGHJKL
- Chemical Name:
- Avatrombopag Impurity 76
- Chemical Name:
- Rosuvastatin Impurity 153
- Chemical Name:
- Rosuvastatin Impurity 138
- Chemical Name:
- Rosuvastatin Impurity 127
- Chemical Name:
- Oxacillin sodium EP impurity J
- Chemical Name:
- Piperacillin Sodium EP Impurity P
- Chemical Name:
- (S)-N-(4-((3-chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4-(dimethylamino)butanamide
- Chemical Name:
- Ertapenem Impurity B(USP)
- Structure:
- Chemical Name:
- INDEX NAME NOT YET ASSIGNED
- CAS:
- 2458312-06-4
- MF:
- C27H30N2O6
- Structure:
- Chemical Name:
- 15(R)-17-PHENYL TRINOR PROSTAGLANDIN F2ALPHA
- CAS:
- 41639-71-8
- MF:
- C23H32O5