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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Cloxacillin Impurity X
- CAS:
- MF:
- Chemical Name:1-(4-((2-(4-hydroxypiperidin-1-yl)ethyl)(methyl)carbamoyl)benzyl)piperidine-4-carboxamide
- CAS:
- MF:
- Chemical Name:Azilsartan Impurity 107
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 25
- CAS:
- MF:
- Chemical Name:Paxlovid Impurity 16
- CAS:
- MF:
- Chemical Name:3-(2-(cyclopent-1-en-1-yl)-2-hydroxy-2-phenylacetoxy)-1,1-dimethylpyrrolidin-1-ium bromide
- CAS:
- MF:
- Chemical Name: Fondaparinux sodium impurity 17
- CAS:
- MF:
- Chemical Name:Fondaparinux sodium impurity 12
- CAS:
- MF:
- Chemical Name:Piperacillin impurity L
- CAS:
- MF:
- Chemical Name:Piperacillin Impurity X
- CAS:
- MF:
- Structure:

- Chemical Name:ETHYLTRITYLETHER
- CAS:968-39-8
- MF:C21H20O
- Chemical Name:Bosutinib Impurity 41
- CAS:
- MF:
- Structure:

- Chemical Name:(S)-3-Dimethylamino-3-phenylpropanol
- CAS:82769-75-3
- MF:C11H17NO
- Chemical Name:Valdecoxib N-Oxide
- CAS:
- MF:
- Chemical Name:Olodaterol Impurity 23
- CAS:
- MF:
- Chemical Name: Miglitol Isomer impurities C
- CAS:
- MF:
- Chemical Name:Alpha-D-Methylglucoside
- CAS:
- MF:
- Structure:

- Chemical Name:4-Desacetyl Vincristine
- CAS:3704-01-6
- MF:C44H54N4O9
- Chemical Name:Oxytocin Impurity 8 Trifluoroacetate
- CAS:
- MF:
- Chemical Name:Peramivir Dehydrated Impurity
- CAS:
- MF:
- Chemical Name:Apixaban Impurity 78
- CAS:
- MF:
- Chemical Name:Formoterol Impurity 32
- CAS:
- MF:
- Structure:

- Chemical Name:Desloratadine EP impurity A hcl
- CAS:2250242-44-3
- MF:C19H21Cl2FN2
- Structure:

- Chemical Name:(3S,4S)-Tofacitinib
- CAS:1092578-47-6
- MF:C16H20N6O
- Chemical Name:Rosuvastatin Impurity 145
- CAS:
- MF:
- Chemical Name:Apixaban Impurities 15 Complete Set
- CAS:
- MF:
- Chemical Name:Peramivir Intermediate impurity 1
- CAS:
- MF:
- Chemical Name:Rosuvastatin EP Impurity G
- CAS:
- MF:
- Chemical Name:Peramivir Intermediate Impurity 43
- CAS:
- MF:
- Chemical Name:Peramivir Deacetylated Impurity
- CAS:
- MF:
- Chemical Name:Linagliptin Impurity 49
- CAS:
- MF:
- Chemical Name:Loxoprofen Sodium Impurity 35
- CAS:
- MF:
- Chemical Name:Dashatinib impurity 46
- CAS:
- MF:
- Structure:

- Chemical Name:(R,S)-N-Acetyl-3,4-dimethoxy phenylalanine
- CAS:27313-65-1
- MF:C13H17NO5
- Chemical Name:Oxytocin oxide impurity reference substance
- CAS:
- MF:
- Chemical Name:Troxipide Impurity 7
- CAS:
- MF:
- Chemical Name:Bendamustine Impurity 37A
- CAS:
- MF:
- Chemical Name:Brivaracetam Impurity 50
- CAS:
- MF:
- Chemical Name:6-Hydroxymoxifloxacin Impurities
- CAS:
- MF:
- Chemical Name:(S)-4-(((R)-1-carboxy-2-((3-hydroxypropyl)thio)ethyl)amino)-3-hydroxy-4-oxobutanoic acid
- CAS:
- MF:
- Structure:

- Chemical Name:1,3-bis(5-bromo-2-methoxyphenyl)adamantane
- CAS:932033-56-2
- MF:C24H26Br2O2
- Structure:

- Chemical Name:(S)-dimethyl 2-(4-(((2,4-diaminopteridin-6-yl)methyl)(methyl)amino)benzamido)pentanedioate
- CAS:67676-60-2
- MF:C22H27ClN8O5
- Structure:

- Chemical Name:2-Pyrazinecarboxylic acid, 6-methyl-, 4-oxide
- CAS:51037-31-1
- MF:C6H6N2O3
- Chemical Name:Furoxine GSK Open Ring Impurity
- CAS:
- MF:
- Structure:

- Chemical Name:4-Piperidinecarboxylic acid, 1-[3-chloro-5-[[[4-(4-chloro-2-thienyl)-5-(4-cyclohexyl-4-oxido-1-piperazinyl)-2-thiazolyl]amino]carbonyl]-2-pyridinyl]-
- CAS:2681355-40-6
- MF:C29H34Cl2N6O4S2
- Chemical Name:Isavuconazole Impurity 48
- CAS:
- MF:
- Structure:

- Chemical Name:(S)-2-(1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethyl)-5-nitroisoindoline-1,3-dione
- CAS:
- MF:C20H20N2O8S
- Chemical Name: Relugolix Impurity 91
- CAS:
- MF:
- Structure:

- Chemical Name:D,L N-Desmethylvenlafaxine
- CAS:149289-30-5
- MF:C16H25NO2
- Chemical Name:1-Ethyl-2-[[(2-methoxy-5-sulphamoyl
- CAS:
- MF:
- Structure:

- Chemical Name:2-(4-Bromo-3-formylphenoxy)-benzonitrile
- CAS:1160182-46-6
- MF:C14H8BrNO2
- Chemical Name:Carbetocin S-Oxide I
- CAS:
- MF:
- Chemical Name:Dolutegravir Impurity 15
- CAS:
- MF:
- Structure:

- Chemical Name:1-(4-NITRO-PHENYL)-1H-PYRIDIN-2-ONE
- CAS:53427-97-7
- MF:C11H8N2O3
- Structure:

- Chemical Name:5'-(2-cyanophenyl)-6'-oxo-1'-phenyl-1',6'-dihydro-[2,3'-bipyridine] 1-oxide
- CAS:380919-67-5
- MF:C23H15N3O2
- Chemical Name:Empagliflozin Impurity 86
- CAS:
- MF:
- Structure:

- Chemical Name:Olopatadine Impurity 11 HBr
- CAS:4174-84-9
- MF:C21H24Br2NP
- Chemical Name:Iohexol Impurity P
- CAS:
- MF:
- Chemical Name:Avibactam sodium Impurity CEA
- CAS:
- MF:
- Structure:

- Chemical Name:Sulbactam Impurity 2
- CAS:111790-24-0
- MF:C8H13NO6S
- Structure:

- Chemical Name:Vortioxetine Impurity 8 HCl
- CAS:2137722-14-4
- MF:C18H23ClN2S
- Chemical Name:Relugolix Impurity 1
- CAS:3009131-53-4
- MF:
- Structure:

- Chemical Name:Oseltamivir Diastereomer III HCl
- CAS:2413185-95-0
- MF:C16H28N2O4
- Structure:

- Chemical Name:Rocuronium bromide impurity (3,16,17-triol)
- CAS:
- MF:C23H39NO4
- Structure:

- Chemical Name:4-(4-amino-3-chlorophenoxy)-7-methoxyquinoline-6-carboxylic acid
- CAS:
- MF:C17H13ClN2O4
- Chemical Name:Ornidazole Impurity 26
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 73
- CAS:
- MF:
- Chemical Name:Furosemide Impurity 24
- CAS:
- MF:
- Structure:

- Chemical Name:2-(4-(2-(4-(1-(2-methoxyethyl)-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)phenyl)-2-methylpropanoic acid
- CAS:
- MF:C27H35N3O3
- Chemical Name:Tafluprost Impurity 19
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 162
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 151
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 148
- CAS:
- MF:
- Structure:

- Chemical Name:FUROSEMIDE ACYL-B-D-GLUCURONIDE
- CAS:72967-59-0
- MF:C18H19ClN2O11S
- Chemical Name:Digoxin Impurity 1
- CAS:
- MF:
- Chemical Name:Bimatoprost Impurity 23
- CAS:
- MF:
- Chemical Name:Oxacillin Impurity IMPA
- CAS:
- MF:
- Chemical Name:Rebamipide Impurity X(Rebamipide Impurity 7)
- CAS:
- MF:
- Chemical Name:sodium 1-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)ethane-1-sulfonate
- CAS:
- MF:
- Structure:

- Chemical Name:Pyrimidine, 4,6-dichloro-5-nitroso-2-(propylthio)-
- CAS:2512210-19-2
- MF:C7H7Cl2N3OS
- Structure:

- Chemical Name:5-Pyrimidinamine, 4,6-dichloro-N-hydroxy-2-(propylthio)-
- CAS:2517939-84-1
- MF:C7H9Cl2N3OS
- Structure:

- Chemical Name:(R)-4-(4-methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)benzenediazonium tetrafluoroborate
- CAS:1630761-21-5
- MF:C11H11N4O+
- Chemical Name:N-acetyl-β-D-glucosidase
- CAS:
- MF:
- Chemical Name:CetearylGlucosideCetearyl Glucoside
- CAS:246159-33-1
- MF:
- Chemical Name:Bisoprolol Impurity 40
- CAS:
- MF:
- Structure:

- Chemical Name:2H-Naphtho[1,2-b]pyran-6-ol, 2,5-dimethyl-2-[(3E,7E)-4,8,12-trimethyl-3,7,11-tridecatrienyl]- (9CI)
- CAS:65941-19-7
- MF:C31H40O2
- Structure:

- Chemical Name:Amifostine Impurity 15
- CAS:10297-31-1
- MF:C7H17Br3N2
- Chemical Name:Doxylamine Impurity G
- CAS:
- MF:
- Structure:

- Chemical Name:2,4-Pyrimidinediol, 6-chloro- (9CI)
- CAS:107577-09-3
- MF:C4H3ClN2O2
- Structure:

- Chemical Name:2,4-Pyrimidinediol, 6-chloro- (9CI)
- CAS:107577-09-3
- MF:C4H3ClN2O2
- Chemical Name:Phenoxymethylpenicillin Potassium Impurity 8
- CAS:
- MF:
- Chemical Name:Tegoprazan Impurity 4
- CAS:
- MF: