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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:
- Olaparib impurity 1
- CAS:
- 763113-06-0
- MF:
- C24H24N4O3
- Structure:
- Chemical Name:
- 4-Quinazolinamine,N-(3-ethenylphenyl)-6,7-bis(2-methoxyethoxy)-,hydrochloride(1:1)
- CAS:
- 1624294-38-7
- MF:
- C22H26ClN3O4
- Structure:
- Chemical Name:
- 4-Oxiranylmethoxy-benzaldehyde
- CAS:
- 14697-49-5
- MF:
- C10H10O3
- Structure:
- Chemical Name:
- Alogliptin Related Compound 24
- CAS:
- 1430222-06-2
- MF:
- C14H12ClN3O2
- Chemical Name:
- Apremilast Impurity 1
- Structure:
- Chemical Name:
- Etoricoxib Impurity 15
- CAS:
- 73312-69-3
- MF:
- C5H8ClNO
- Chemical Name:
- Ibrutinib Impurity 1
- Chemical Name:
- Mirabegron Impurity 13
- Chemical Name:
- Riociguat Impurtiy 4
- Structure:
- Chemical Name:
- 2,3-Dehydrosilybin B
- CAS:
- 142796-24-5
- MF:
- C25H20O10
- Structure:
- Chemical Name:
- Cabozantinib Impurity
- CAS:
- 1355031-15-0
- MF:
- C16H14N2O3
- Chemical Name:
- Canagliflozin open-ring impurity
- Chemical Name:
- Dapoxetine Impurity E
- Structure:
- Chemical Name:
- Ilaprazole Impurity
- CAS:
- 1018229-53-2
- MF:
- C11H9N3O
- Chemical Name:
- Linagliptin Impurity X
- Structure:
- Chemical Name:
- Norfloxacin Imp.(EP)
- CAS:
- 1911573-08-4
- MF:
- C34H52FN3O4
- Structure:
- Chemical Name:
- Rocuronium Bromide Impurity
- CAS:
- 13492-57-4
- MF:
- C27H44N2O4
- Chemical Name:
- Ruxolitinib Impurity
- Chemical Name:
- Roxithromycin h
- Chemical Name:
- Ixazomib Impurity 2
- Structure:
- Chemical Name:
- sildenafil impurity I
- MF:
- C22H30N6O4S
- Structure:
- Chemical Name:
- 2-[3-(2-cyanopropan-2-yl)-5-(1,2,4-triazol-4-ylmethyl)phenyl]-2-methyl-propaneni
- CAS:
- 120511-92-4
- MF:
- C17H19N5
- Structure:
- Chemical Name:
- 4-(benzyloxy)-2-methyl-1H-benzo[d]imidazole-6-carboxylic acid
- CAS:
- 942195-83-7
- MF:
- C16H14N2O3
- Chemical Name:
- Tofacitinib Impurity G
- Structure:
- Chemical Name:
- Ceftaroline Fosamil Impurity 6
- CAS:
- 953037-71-3
- MF:
- C22H20N8O5S4
- Structure:
- Chemical Name:
- Zolmitriptan Related Compound F
- CAS:
- 1350928-05-0
- MF:
- C38H53N7O4
- Structure:
- Chemical Name:
- 4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)butan-1-ol
- CAS:
- 913614-15-0
- MF:
- C16H22N2OS
- Structure:
- Chemical Name:
- 3-((methoxycarbonyl)methyl)-5-methylhexanoic acid
- CAS:
- 181289-11-2
- MF:
- C10H18O4
- Structure:
- Chemical Name:
- Cyanocobalamin Impurity F
- CAS:
- 23208-66-4
- MF:
- C63H85CoN13O15P
- Chemical Name:
- Acarbose Impurity D
- Chemical Name:
- Acarbose Impurity C
- Chemical Name:
- Nintedanib Impurity G (Intedanib Impurity G)
- Chemical Name:
- Canagliflozin alpha-Isomer Impurity
- Chemical Name:
- Dapagliflozin Impurity 4
- Chemical Name:
- Isavuconazole Impurity 9
- Chemical Name:
- Apremilast Impurity E
- Structure:
- Chemical Name:
- Bisoprolol EP Impurity N
- CAS:
- 1346601-75-9
- MF:
- C17H29NO4
- Chemical Name:
- Rosuvastatin EP Impurity J
- Structure:
- Chemical Name:
- Bosutinib Impurity
- CAS:
- 380843-12-9
- MF:
- C19H15Cl2N3O3
- Structure:
- Chemical Name:
- 4-(4-Chloro-pyrimidin-2-ylamino)-benzamide
- CAS:
- 1629023-90-0
- MF:
- C18H12N6
- Structure:
- Chemical Name:
- Methyl 4-(4-fluorophenyl)-6-isopropyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate
- CAS:
- 488798-36-3
- MF:
- C15H17FN2O3
- Structure:
- Chemical Name:
- Nateglinide Methyl Ester
- CAS:
- 105746-47-2
- MF:
- C20H29NO3
- Structure:
- Chemical Name:
- (1S,2S,3R,5S)-3-(5-Amino-6-chloro-2-(propylthio)pyrimidin-4-ylamino)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol
- CAS:
- 1402150-32-6
- MF:
- C14H23ClN4O4S
- Structure:
- Chemical Name:
- Lamivudine impurity 6
- CAS:
- 147126-64-5
- MF:
- C14H24O4S
- Chemical Name:
- Palbociclib Impurity G
- Chemical Name:
- Trifluridine Impurity 1
- Structure:
- Chemical Name:
- Tigecycline Impurity 1
- CAS:
- 1138343-10-8
- MF:
- C29H38N5O10+
- Structure:
- Chemical Name:
- Cephalexin Impurity 3
- MF:
- C16H17N3O4S
- Chemical Name:
- Vonoprazan Impurity 2
- Structure:
- Chemical Name:
- Sildenafil Impurity F
- CAS:
- 263897-18-3
- MF:
- C21H28N6O4S
- Structure:
- Chemical Name:
- Cetirizine impurity 5
- MF:
- C21H25ClN2O3
- Structure:
- Chemical Name:
- Valsartan impurity 35
- CAS:
- 1283097-98-2
- MF:
- C24H29N5O3
- Structure:
- Chemical Name:
- Valsartan Impurity 16
- CAS:
- 2680532-87-8
- MF:
- C7H16N2O
- Chemical Name:
- Istradefylline Impurity 1
- Chemical Name:
- Everolimus impurity 4
- Structure:
- Chemical Name:
- Ambrisentan Impurity 3
- CAS:
- 178306-49-5
- MF:
- C16H16O4
- Chemical Name:
- Avanafil Impurity 9
- Chemical Name:
- Erlotinib Imp.15
- Chemical Name:
- Erlotinib Imp.5
- Chemical Name:
- Ticagrelor Imp.Q
- Structure:
- Chemical Name:
- Avibactam Impurity 15
- CAS:
- 1416134-60-5
- MF:
- C15H20N2O3
- Structure:
- Chemical Name:
- (1R,3R)-Solifenacin Succinate 2
- CAS:
- 740780-79-4
- MF:
- C23H26N2O2
- Chemical Name:
- Daptomycin Impurity 3
- Chemical Name:
- Duluvir impurity 1
- Chemical Name:
- Lincomycin sulfoxide Impurity D
- Chemical Name:
- Lornoxicam Impurity 4
- Chemical Name:
- Netupitant Impurity 3
- Chemical Name:
- nicergoline impurity B
- Chemical Name:
- Tacrolimus Impurity B
- Chemical Name:
- Oxytetracycline Impurity
- Structure:
- Chemical Name:
- 1H-Benz[de]isoquinolin-1-one,2,4,5,6-tetrahydro-2-[(3S)-1-oxido-1-azabicyclo[2.2.2]oct-3-yl]-
- CAS:
- 1021456-82-5
- MF:
- C19H22N2O2
- Structure:
- Chemical Name:
- Erlotinib Impurity 20
- CAS:
- 236750-62-2
- MF:
- C13H20N2O5
- Structure:
- Chemical Name:
- Afatinib Impurity 17
- CAS:
- 1870880-09-3
- MF:
- C20H18Cl2FN5O
- Structure:
- Chemical Name:
- 6-amino-1,5-dimethylpyrimidine-2,4(1H,3H)-dione
- CAS:
- 63959-47-7
- MF:
- C6H9N3O2
- Chemical Name:
- Ciclosporin impurity
- Structure:
- Chemical Name:
- Atomoxetine impurity
- CAS:
- 42064-62-0
- MF:
- C18H24ClNO
- Structure:
- Chemical Name:
- Conivaptan impurity
- CAS:
- 1129433-63-1
- MF:
- C32H26N4O2
- Structure:
- Chemical Name:
- Terazosin impurity
- CAS:
- 1260939-66-9
- MF:
- C19H27N5O4
- Structure:
- Chemical Name:
- ent-Ivabradine Hydrochloride
- CAS:
- 167072-91-5
- MF:
- C27H36N2O5
- Chemical Name:
- SofosBuvir Impurity 2
- Structure:
- Chemical Name:
- isopropyl 2-(3-cyano-4-isobutoxyphenyl)-4-methylthiazole-5-carboxylate
- CAS:
- 1346238-10-5
- MF:
- C19H22N2O3S
- Structure:
- Chemical Name:
- 1,3-diphenylpropan-1-ol
- CAS:
- 14097-24-6
- MF:
- C15H16O
- Chemical Name:
- Canagliflozin Impurity 21
- Chemical Name:
- Canagliflozin Impurity 7
- Chemical Name:
- Dolutegravir Glucoside
- Structure:
- Chemical Name:
- Fasudil Impurity 5
- CAS:
- 2044702-91-0
- MF:
- C10H9NO3S
- Chemical Name:
- Ibrutinib Impurity 10
- Structure:
- Chemical Name:
- Lesinurad Impurity 4
- CAS:
- 1533519-97-9
- MF:
- C17H14BrN3O2S
- Structure:
- Chemical Name:
- 1-(5-(2-fluorophenyl)-1H-pyrrol-3-yl)-N-methylmethanamine
- CAS:
- 1610043-62-3
- MF:
- C12H13FN2
- Structure:
- Chemical Name:
- FeBuxostat Impurity 26
- CAS:
- 1886961-39-2
- MF:
- C14H12N2O3S
- Chemical Name:
- Rivaroxaban degradation impurity 2
- Structure:
- Chemical Name:
- (S)-methyl 2-(((S)-(perfluorophenoxy)(phenoxy)phosphoryl)amino)propanoate
- CAS:
- 1911578-88-5
- MF:
- C16H13F5NO5P
- Structure:
- Chemical Name:
- (R)-3-((R)-2-cyclopentyl-2-hydroxy-2-phenylacetoxy)-1,1-dimethylpyrrolidin-1-ium
- MF:
- C19H28NO3+
- Structure:
- Chemical Name:
- 5-fluoro-1-((2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl)pyrimidine-2,4(1H,3H)-dione
- MF:
- C8H9FN2O4S
- Structure:
- Chemical Name:
- Amlodipine Impurity 13
- MF:
- C26H31ClN2O8S
- Chemical Name:
- Apixaban Impurity 13
- Structure:
- Chemical Name:
- Aripiprazole-Impurity 17
- CAS:
- 1424857-89-5
- MF:
- C16H17Cl4N3
- Structure:
- Chemical Name:
- Cefathiamidine Impurity 3
- CAS:
- 1417570-09-2
- MF:
- C17H26N4O4S2
- Chemical Name:
- Rivaroxaban Impurity 34
- Structure:
- Chemical Name:
- Rivaroxaban Impurity 43
- CAS:
- 2197189-38-9
- MF:
- C19H18ClN3O6S