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Pharmaceutical Impurity Reference Standards
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- Chemical Name:
- Tocopherol EP Impurity D
- Chemical Name:
- Org246653-1(RRT0.35)
- Structure:
- Chemical Name:
- 1H-Isoindole-1,3(2H)-dione, 2-[(2S)-2,3-dihydroxypropyl]-
- CAS:
- 119835-88-0
- MF:
- C11H11NO4
- Structure:
- Chemical Name:
- Brexpiprazole Impurity 76
- CAS:
- 433303-94-7
- MF:
- C12H14N2S
- Structure:
- Chemical Name:
- Phenacetin Impurity 3
- CAS:
- 24176-84-9
- MF:
- C14H13ClN2O2
- Structure:
- Chemical Name:
- 2-(isopropylamino)-3-(4-(2-methoxyethyl)phenoxy)propan-1-ol
- CAS:
- 109632-11-3
- MF:
- C15H25NO3
- Chemical Name:
- Pabuxilibu impurities
- Chemical Name:
- ERYTHROMYCIN IMPURITY G
- Chemical Name:
- Amylmetacresol EP impurity E
- Structure:
- Chemical Name:
- (2S)-2-(2,5-dioxo-3-propylpyrrolidin-1-yl)butanamide
- CAS:
- 2232201-72-6
- MF:
- C11H18N2O3
- Structure:
- Chemical Name:
- methyl 1-hydroxy-2-oxoindoline-6-carboxylate
- CAS:
- 1895918-24-7
- MF:
- C10H9NO4
- Chemical Name:
- Dapagliflozin Impurity (MW: 437Da)
- Chemical Name:
- Cetirizine Impurity BHA
- Chemical Name:
- Macitentandesbromopyrimidine Impurity
- Chemical Name:
- Cilastatin EP Impurity H
- Structure:
- Chemical Name:
- Febuxostat Impurity 130
- CAS:
- 1643131-93-4
- MF:
- C20H25NO5S
- Chemical Name:
- (2-Chlorophenyl)diphenylmethanol
- Structure:
- Chemical Name:
- Nilotinib Impurity 27
- CAS:
- 1807606-80-9
- MF:
- C28H22F3N7O2
- Chemical Name:
- Vonoprazan Impurity 53
- Chemical Name:
- Vonoprazan Impurity 61
- Chemical Name:
- Emtricitabine Ring-opening Impurity
- Chemical Name:
- Tafluprost Impurity 1 (Tafluprost (1S,2S,3S,5R)-Isomer)
- Structure:
- Chemical Name:
- Escitalopram Butyryl Impurity
- CAS:
- 1803244-58-7
- MF:
- C25H33FN2O2
- Chemical Name:
- Oseltamivir isomer impurity
- Structure:
- Chemical Name:
- Ethyl 4-bromo-3-hydroxybutyrate
- CAS:
- 32224-01-4
- MF:
- C6H11BrO3
- Structure:
- Chemical Name:
- (2S,3S,5S)-2-Hexyl-3,5-dihydroxyhexadecanoic Acid
- CAS:
- 130793-30-5
- MF:
- C22H44O4
- Structure:
- Chemical Name:
- Mosapride Citric Amide
- CAS:
- 1215825-20-9
- MF:
- C27H31ClFN3O9
- Structure:
- Chemical Name:
- (1,2,4-Triazol-4-yl) Itraconazole
- CAS:
- 854372-77-3
- MF:
- C35H38Cl2N8O4
- Structure:
- Chemical Name:
- 6,7,8,9-Tetrahydro Carvedilol
- CAS:
- 1246820-73-4
- MF:
- C24H30N2O4
- Structure:
- Chemical Name:
- Cefdinir Lactone
- CAS:
- 946573-41-7
- MF:
- C14H13N5O5S2
- Structure:
- Chemical Name:
- Ozagrel methylester
- CAS:
- 866157-50-8
- MF:
- C13H12N2O2
- Structure:
- Chemical Name:
- 5-BroModescyano CitalopraM
- CAS:
- 64169-39-7
- MF:
- C19H21BrFNO
- Structure:
- Chemical Name:
- Aripiprazole N,N-Dioxide
- CAS:
- 573691-13-1
- MF:
- C23H27Cl2N3O4
- Structure:
- Chemical Name:
- Deschloro Cetirizine Dihydrochloride
- CAS:
- 83881-54-3
- MF:
- C21H26N2O3
- Structure:
- Chemical Name:
- DesvancosaMinyl VancoMycin
- CAS:
- 101485-50-1
- MF:
- C59H62Cl2N8O22
- Structure:
- Chemical Name:
- rac N-Desbutyroyl Acebutolol
- CAS:
- 57898-80-3
- MF:
- C14H22N2O3
- Structure:
- Chemical Name:
- rac-Clopidogrel-MP Endo Derivative
- CAS:
- 1346598-12-6
- MF:
- C25H26ClNO6S
- Structure:
- Chemical Name:
- 1,1'-N-[Methylenebis(sulphanediylethylene)]bis(N'-Methyl-2-nitroethene-1,1-diaMine
- CAS:
- 1331637-48-9
- MF:
- C11H22N6O4S2
- Structure:
- Chemical Name:
- ent-LaMivudine
- CAS:
- 134680-32-3
- MF:
- C8H11N3O3S
- Structure:
- Chemical Name:
- Formoterol O-β-D-Glucuronide
- CAS:
- 615551-59-2
- MF:
- C25H32N2O10
- Structure:
- Chemical Name:
- Mono-POC Tenofovir 6-Isopropyl CarbaMate
- CAS:
- 1244022-56-7
- MF:
- C18H28N5O9P
- Structure:
- Chemical Name:
- N-Methyl Iso Desloratadine
- CAS:
- 183198-48-3
- MF:
- C20H21ClN2
- Structure:
- Chemical Name:
- Tartaric Acid Isopropyl Ester
- CAS:
- 116601-09-3
- MF:
- C7H12O6
- Structure:
- Chemical Name:
- Vardenafil Acetyl Analogue
- CAS:
- 1261351-28-3
- MF:
- C25H34N6O3
- Chemical Name:
- fenofibrate iMpurity
- Structure:
- Chemical Name:
- 6,11-Di-O-Methyl ErythroMycin
- CAS:
- 81103-14-2
- MF:
- C39H71NO13
- Structure:
- Chemical Name:
- ent-OseltaMivir Phosphate
- CAS:
- 1035895-89-6
- MF:
- C16H29N2O8P
- Structure:
- Chemical Name:
- 3,5,3',5'-Tetraiodo Thyrolactic Acid
- CAS:
- 7069-47-8
- MF:
- C15H10I4O5
- Structure:
- Chemical Name:
- 3-cyano-4-isobutoxybenzaMide
- CAS:
- 161718-85-0
- MF:
- C12H14N2O2
- Structure:
- Chemical Name:
- Caffeidinecarboxylic acid
- CAS:
- 54536-15-1
- MF:
- C8H12N4O3
- Structure:
- Chemical Name:
- 1-Keto BaMbuterol
- CAS:
- 112935-94-1
- MF:
- C18H27N3O5
- Structure:
- Chemical Name:
- 7-Chloro-4-(4-hydroxyanilino)quinoline
- CAS:
- 81099-86-7
- MF:
- C15H11ClN2O
- Structure:
- Chemical Name:
- Desfluoro EzetiMibe
- CAS:
- 302781-98-2
- MF:
- C24H22FNO3
- Structure:
- Chemical Name:
- 5-(2-Bromo-1-oxobutyl)-8-hydroxy-2(1H)-quinolinone
- CAS:
- 59827-93-9
- MF:
- C13H12BrNO3
- Structure:
- Chemical Name:
- 2-(N,N-DIETHYLAMINO)-4,6-DICHLOROTRIAZINE
- CAS:
- 2401-64-1
- MF:
- C5H6Cl2N4
- Structure:
- Chemical Name:
- (S)-4-Chloro-1,3-butanediol
- CAS:
- 139013-68-6
- MF:
- C4H9ClO2
- Structure:
- Chemical Name:
- 6-CHLORO-1-METHYLURACIL
- CAS:
- 31737-09-4
- MF:
- C5H5ClN2O2
- Structure:
- Chemical Name:
- 5-(Propylthio)-1H-benzimidazol-2-amine
- CAS:
- 80983-36-4
- MF:
- C10H13N3S
- Structure:
- Chemical Name:
- Ethyl 4,5-bis(2-methoxyethoxy)-2-nitrobenzoate
- CAS:
- 179688-26-7
- MF:
- C15H21NO8
- Structure:
- Chemical Name:
- Hexyl methanesulfonate
- CAS:
- 16156-50-6
- MF:
- C7H16O3S
- Structure:
- Chemical Name:
- 5-CHLOROTHIOPHENE-3-CARBOXYLIC ACID
- CAS:
- 36157-42-3
- MF:
- C5H3ClO2S
- Structure:
- Chemical Name:
- (S)-(+)-1-[(4-Chlorophenyl)phenylmethyl]piperazine
- CAS:
- 439858-21-6
- MF:
- C17H19ClN2
- Structure:
- Chemical Name:
- 2,8-Dichloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-β]pyridin-11-one
- CAS:
- 133330-61-7
- MF:
- C14H9Cl2NO
- Structure:
- Chemical Name:
- 2-Isopropyl-6-propylphenol (Propofol Impurity O)
- CAS:
- 74663-48-2
- MF:
- C12H18O
- Structure:
- Chemical Name:
- 3-Methyl-2-(3,4-dimethoxyphenyl)butyronitrile
- CAS:
- 20850-49-1
- MF:
- C13H17NO2
- Structure:
- Chemical Name:
- HYDROXY ITRACONAZOLE
- CAS:
- 112559-91-8
- MF:
- C35H38Cl2N8O5
- Structure:
- Chemical Name:
- 1-HEXADECANOYL-2-(P-NITROPHENOXYSUCCINOYL)-SN-GLYCERYL-3-PHOSPHORYLCHOLINE
- CAS:
- 170569-87-6
- MF:
- C16H12F3N3O2S
- Structure:
- Chemical Name:
- N-methyl-N-(4-nitrophenyl)-2-(piperazin-1-yl)acetamide
- CAS:
- 1038972-16-5
- MF:
- C13H18N4O3
- Structure:
- Chemical Name:
- 1,4-BIS[3,4-DIHYDRO-2(1H)-QUINOLINON-7-OXY]BUTANE
- CAS:
- 882880-12-8
- MF:
- C22H24N2O4
- Structure:
- Chemical Name:
- (R)-SN-38
- CAS:
- 647852-82-2
- MF:
- C22H20N2O5
- Structure:
- Chemical Name:
- 5'-Deoxy-5-fluoro-N4-(isopentyloxycarbonyl)cytidine
- CAS:
- 162204-30-0
- MF:
- C15H22FN3O6
- Structure:
- Chemical Name:
- 4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine Hydrochloride
- CAS:
- 1034439-57-0
- MF:
- C24H32ClNO2
- Structure:
- Chemical Name:
- 5-(aminosulfonyl)-2-methoxybenzamide
- CAS:
- 52395-25-2
- MF:
- C8H10N2O4S
- Structure:
- Chemical Name:
- PIPERIDINE-3-CARBOXYLIC ACID (2,6-DIMETHYL-PHENYL)-AMIDE
- CAS:
- 337488-90-1
- MF:
- C14H20N2O
- Structure:
- Chemical Name:
- N-Desmethyl Citalopram-d4 Oxalate
- CAS:
- 62498-68-4
- MF:
- C21H21FN2O5
- Structure:
- Chemical Name:
- 2-Ethoxy-6-nitro-9-acridinamine
- CAS:
- 20304-70-5
- MF:
- C15H13N3O3
- Structure:
- Chemical Name:
- 4-O-Carboxymethyl-21-deoxy-20-hydroxy-21-oxorifamycin
- CAS:
- 15271-73-5
- MF:
- C39H47NO15
- Structure:
- Chemical Name:
- (3,4-Dimethoxyphenyl)isopropyl ketone
- CAS:
- 14046-55-0
- MF:
- C12H16O3
- Structure:
- Chemical Name:
- 2,3-Dichloro-5,6-diphenylpyrazine
- CAS:
- 57038-62-7
- MF:
- C16H10Cl2N2
- Structure:
- Chemical Name:
- DIDESMETHYL CITALOPRAM-D4
- CAS:
- 62498-69-5
- MF:
- C18H17FN2O
- Structure:
- Chemical Name:
- Bis(3-hydroxypropyl) persulfide
- CAS:
- 30453-21-5
- MF:
- C6H14O2S2
- Structure:
- Chemical Name:
- CHLOROAC-PRO-OH
- CAS:
- 23500-10-9
- MF:
- C7H10ClNO3
- Structure:
- Chemical Name:
- 2,4-Dihydro-4-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one
- CAS:
- 252964-68-4
- MF:
- C23H29N5O2
- Structure:
- Chemical Name:
- 2-(2-Methoxyphenoxy)ethanol
- CAS:
- 18181-71-0
- MF:
- C9H12O3
- Structure:
- Chemical Name:
- 2-(3-Chloro-2-hydroxypropyl)-2H-isoindole-1,3-dione
- CAS:
- 19667-37-9
- MF:
- C11H10ClNO3
- Structure:
- Chemical Name:
- 4,6-Dibromo-m-cresol
- CAS:
- 13321-76-1
- MF:
- C7H6Br2O
- Structure:
- Chemical Name:
- 4-(2,3-DIMETHYL-BENZYL)-1H-IMIDAZOLE HCL H2O
- CAS:
- 90038-00-9
- MF:
- C12H17ClN2O
- Structure:
- Chemical Name:
- Metoprolol Acid Ethyl Ester
- CAS:
- 29112-40-1
- MF:
- C16H25NO4
- Structure:
- Chemical Name:
- 6-Hydroxy Desloratadine
- CAS:
- 119410-05-8
- MF:
- C19H19ClN2O
- Structure:
- Chemical Name:
- 10-Acetyloxy Oxcarbazepine
- CAS:
- 113952-21-9
- MF:
- C17H14N2O4
- Structure:
- Chemical Name:
- 9-[[2-(α-L-Alanyloxy)ethoxy]methyl]guanine Hydrochloride
- CAS:
- 84499-63-8
- MF:
- C11H17ClN6O4
- Structure:
- Chemical Name:
- Irinotecan Impurity 26
- CAS:
- 86639-51-2
- MF:
- C22H20N2O5
- Structure:
- Chemical Name:
- Bis(aminoethoxy) Amlodipine
- CAS:
- 721958-74-3
- MF:
- C22H30ClN3O6
- Structure:
- Chemical Name:
- 7,8,9,10-Dehydro Doxorubicinone
- CAS:
- 1159977-23-7
- MF:
- C21H14O8
- Structure:
- Chemical Name:
- 4-tert-Butyl-2,6-dimethyl-3-hydroxyphenylacetamide (Oxymetazoline hydrochloride impurity)
- CAS:
- 55699-13-3
- MF:
- C14H21NO2
- Structure:
- Chemical Name:
- (S)-N-Demethyl Dapoxetine
- CAS:
- 147199-39-1
- MF:
- C20H21NO
- Structure:
- Chemical Name:
- Famotidine Related Compound A Hydrochloride
- CAS:
- 76833-47-1
- MF:
- C8H15ClN6S2
- Structure:
- Chemical Name:
- Des(trifluoroethyl) Lansoprazole Sulfide
- CAS:
- 131926-97-1
- MF:
- C14H13N3OS
- Structure:
- Chemical Name:
- Desulfo Aztreonam
- CAS:
- 102579-59-9
- MF:
- C13H17N5O5S
- Structure:
- Chemical Name:
- 2-Propanol, 1-[2-(2-methoxyethyl)phenoxy]-3-[(1-methylethyl)amino]-
- CAS:
- 163685-38-9
- MF:
- C15H25NO3