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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:D,L-O-DesMethyl Venlafaxine-d6
- CAS:1062605-69-9
- MF:C16H19D6NO2
- Structure:
- Chemical Name:(E)-3-[p-Bromomethylphenyl]acrylic acid ethyl ester
- CAS:78712-67-1
- MF:C12H13BrO2
- Structure:
- Chemical Name:3-Amino-2-butenoic acid
- CAS:21112-45-8
- MF:C4H7NO2
- Structure:
- Chemical Name:DU 6858
- CAS:127199-06-8
- MF:C19H18ClF2N3O3
- Structure:
- Chemical Name:rac 4-[4-(Oxiranylmethoxy)-1,2,5-thiadiazol-3-yl]morpholine
- CAS:58827-68-2
- MF:C9H13N3O3S
- Structure:
- Chemical Name:rac a-Hydroxy Ibuprofen
- CAS:60057-62-7
- MF:C13H18O3
- Structure:
- Chemical Name:3a,7a-dihydroxy-5-(1-methyl-1H-indole-3-carbonyl)-hexahydro-1H-benzo[d]imidazol-2(3H)-one
- CAS:171967-74-1
- MF:C17H19N3O4
- Structure:
- Chemical Name:P-TOLYL-PROPYNOIC ACID ETHYL ESTER
- CAS:52188-06-4
- MF:C12H12O2
- Structure:
- Chemical Name:cis-N-Methyl-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthalenamine hydrochloride
- CAS:79617-89-3
- MF:C17H17Cl2N.HCl
- Structure:
- Chemical Name:2,4-DIMETHYLDIPHENYLSULFIDE
- CAS:16704-47-5
- MF:C14H14S
- Structure:
- Chemical Name:Dibenz[b,e]oxepin-11(6H)-one
- CAS:4504-87-4
- MF:C14H10O2
- Structure:
- Chemical Name:2-CHLORO-1-(4,5-DICHLORO-2-THIENYL)ETHAN-1-ONE
- CAS:64218-50-4
- MF:C6H3Cl3OS
- Structure:
- Chemical Name:(5Z,7E)-9,10-Seco-26,27-cyclo-1α,3β-dihydroxycholesta-5,7,10(19)-trien-24-one
- CAS:126860-84-2
- MF:C27H40O3
- Structure:
- Chemical Name:(-)-3-Demethylcolchicine
- CAS:7336-33-6
- MF:C21H23NO6
- Structure:
- Chemical Name:Benzoic acid, 4-[(2S,4S)-4-ethoxy-1-[(5-methoxy-7-methyl-1H-indol-4-yl)methyl]-2-piperidinyl]-, ethyl ester
- CAS:1644670-76-7
- MF:C27H34N2O4
- Structure:
- Chemical Name:Benzamide, 4-[7-[6-cyano-5-(trifluoromethyl)-3-pyridinyl]-8-oxo-6-thioxo-5,7-diazaspiro[3.4]oct-5-yl]-2-fluoro-N-[3-fluoro-4-[(methylamino)carbonyl]phenyl]-N-methyl-
- CAS:2894796-76-8
- MF:C29H21F5N6O3S
- Structure:
- Chemical Name:5-chloro-N-(4,5-dihydro-1H-imidazol-2-yl)quinoxalin-6-amine
- CAS:91147-46-5
- MF:C11H10ClN5
- Structure:
- Chemical Name:(-)-menthyl benzoate
- CAS:6284-35-1
- MF:C17H24O2
- Structure:
- Chemical Name:trans N-Benzyl Paroxetine
- CAS:105813-14-7
- MF:C26H26FNO3
- Chemical Name:Lasmiditan Impurity 10
- CAS:
- MF:
- Chemical Name:Nilotinib N-Oxide Impurity 3
- CAS:
- MF:
- Chemical Name:Pemetrexed Impurity 51
- CAS:
- MF:
- Structure:
- Chemical Name:(S)-Tamsulosin Hydrochloride
- CAS:106463-19-8
- MF:C20H29ClN2O5S
- Structure:
- Chemical Name:2,2'-Bisnalmefene
- CAS:176220-84-1
- MF:C42H48N2O6
- Structure:
- Chemical Name:4-Desmethoxypropoxyl-4-chloro Rabeprazole
- CAS:168167-42-8
- MF:C14H12ClN3OS
- Structure:
- Chemical Name:N-Desmethyl-4-hydroxy Tamoxifen (approx. 1:1 E/Z Mixture)
- CAS:110025-28-0
- MF:C25H27NO2
- Structure:
- Chemical Name:Rebeprazole sulfone N-oxide
- CAS:924663-37-6
- MF:C18H21N3O5S
- Structure:
- Chemical Name:3,3',5,5'-TETRAIODOTHYRO-ACETIC ACID
- CAS:67-30-1
- MF:C14H8I4O4
- Structure:
- Chemical Name:4-Methoxyglucobrassicin
- CAS:83327-21-3
- MF:C17H22N2O10S2
- Structure:
- Chemical Name:4-methylsulfinylbenzoate
- CAS:33963-58-5
- MF:C8H8O3S
- Chemical Name:Capecitabine Related Compound C
- CAS:
- MF:
- Structure:
- Chemical Name:2-Cyclopentene-1-methanol, 4-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl]-, (1R-cis)-
- CAS:136470-79-6
- MF:C14H18N6O
- Structure:
- Chemical Name:Glycopyrrolate Erythro Isomer
- CAS:201667-20-1
- MF:
- Structure:
- Chemical Name:1,2-Benzenedicarboxylicacid,3-(hydroxyamino)-(9CI)
- CAS:202262-76-8
- MF:C8H7NO5
- Structure:
- Chemical Name:(S)-(+)-3-HYDROXYTETRAHYDROFURAN
- CAS:79107-75-8
- MF:C4H8OS
- Structure:
- Chemical Name:TRIBENZYLPHOSPHITE
- CAS:15205-57-9
- MF:C21H21O3P
- Structure:
- Chemical Name:4-Chlor-3-nitro-5-sulfobenzoesure
- CAS:130262-91-8
- MF:C7H4ClNO7S
- Structure:
- Chemical Name:4-(4-Methylpiperazin-1-ylmethyl)benzoic acid
- CAS:106261-48-7
- MF:C13H18N2O2
- Structure:
- Chemical Name:Benzoic acid, 4-[(2S,4S)-4-hydroxy-1-[(5-methoxy-7-methyl-1H-indol-4-yl)methyl]-2-piperidinyl]-
- CAS:1644670-02-9
- MF:C23H26N2O4
- Structure:
- Chemical Name:Diphenylpiperidin-4-ylmethanol hydrochloride
- CAS:1798-50-1
- MF:C18H22ClNO
- Structure:
- Chemical Name:1-(diaminomethylidene)-3-[(2R,3R,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]urea
- CAS:2508-80-7
- MF:C7H14N4O5
- Structure:
- Chemical Name:3-(2-amino-1-hydroxyethyl)benzene-1,2-diol
- CAS:73660-93-2
- MF:C8H11NO3
- Structure:
- Chemical Name:3-(4-Methyl-1H-imidazol-1-yl)-5-(trifluoromethyl)benzonitrile
- CAS:641571-12-2
- MF:C12H8F3N3
- Structure:
- Chemical Name:17-BETA-ESTRADIOL 3-METHYL ETHER
- CAS:1474-53-9
- MF:C19H26O3
- Structure:
- Chemical Name:7-Epi-10-oxo-docetaxel (Docetaxel Impurity D)
- CAS:162784-72-7
- MF:C43H51NO14
- Structure:
- Chemical Name:(3-CHLORO-3-PHENYL-PROPYL)-DIMETHYL-AMINE HYDROCHLORIDE
- CAS:79130-51-1
- MF:C11H16ClN
- Structure:
- Chemical Name:(Dimethylamino)acetaldehyde Dimethyl Acetal
- CAS:38711-20-5
- MF:C6H15NO2
- Structure:
- Chemical Name:Dasatinib N-Oxide
- CAS:910297-52-8
- MF:C22H26ClN7O3S
- Structure:
- Chemical Name:1H-Indole-2-carboxylic acid, 1-[(1S,2S)-1-(2,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)-2-methylcyclopropyl]-5-[(4R)-tetrahydro-2,2-dimethyl-2H-pyran-4-yl]-
- CAS:3067284-94-7
- MF:C22H25N3O5
- Structure:
- Chemical Name:[1,1′-Biphenyl]-2-sulfonamide, 4′-[(2-butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl]-N-(4,5-dimethyl-3-isoxazolyl)-2′-(hydroxymethyl)-
- CAS:254740-63-1
- MF:C30H36N4O5S
- Structure:
- Chemical Name:(R)-9-[2-(DIETHYLPHOSPHONOMETHOXY)PROPYL] ADENINE
- CAS:180587-75-1
- MF:C13H22N5O4P
- Structure:
- Chemical Name:(1R,3S)-(3-Aminocyclopentyl) methanol
- CAS:117957-62-7
- MF:C6H13NO
- Structure:
- Chemical Name:edaravone iMpurity
- CAS:1942007-91-1
- MF:C13H14N2O3S
- Structure:
- Chemical Name:(2R,3R,4R,5S,6R)-2-(3-((5-(4-fluorophenyl)thiophen-2-yl)Methyl)-4-Methylphenyl)-6-(hydroxyMethyl)tetrahydro-2H-pyran-3,4,5-triol
- CAS:
- MF:C24H25FO5S
- Structure:
- Chemical Name:Androst-16-en-3-ol, 17-(3-pyridinyl)-, acetate (ester),(3β,5α)-
- CAS:219843-76-2
- MF:C26H35NO2
- Structure:
- Chemical Name:5-(4-fluorophenyl)-1H-pyrrole-3-carbaldehyde
- CAS:
- MF:C11H8FNO
- Structure:
- Chemical Name:Ganciclovir EP Impurity H
- CAS:84222-50-4
- MF:C9H13N5O4
- Structure:
- Chemical Name:2-[4-[(1E)-1,2-Diphenylethenyl]phenoxy]-N,N-dimethylethanamine
- CAS:97151-10-5
- MF:C24H25NO
- Structure:
- Chemical Name:[S-(R*,R*)]-3,3'-Dithiobis[2-methylpropanoic acid]
- CAS:65134-74-9
- MF:C8H14O4S2
- Structure:
- Chemical Name:(E)-1-(4-(2-Methyl-10H-benzo[b]thieno[2,3-e][1,4]diazepin-4-yl)piperazin-1-yl)ethanone
- CAS:935272-10-9
- MF:C18H20N4OS
- Structure:
- Chemical Name:2-(thiophen-3-yl)ethyl 4-methylbenzenesulfonate
- CAS:40412-09-7
- MF:C13H14O3S2
- Structure:
- Chemical Name:4-Nitrophenyl 5-chlorothiophene-2-carboxylate
- CAS:1450877-56-1
- MF:C11H6ClNO4S
- Chemical Name:Olaparib iMpurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Posaconazole iMpurity 6
- CAS:2185472-85-7
- MF:C30H35N5O3
- Chemical Name:Everolimus Isomer C
- CAS:
- MF:
- Structure:
- Chemical Name:3-Deschloro-4-Desfluoro-4-Chloro-3-Fluorogefitinib
- CAS:1603814-04-5
- MF:C22H24ClFN4O3
- Structure:
- Chemical Name:Brivaracetam (Racemate)
- CAS:357335-87-6
- MF:C11H20N2O2
- Structure:
- Chemical Name:Donepezil Impurity 2
- CAS:36517-91-6
- MF:C11H10O4
- Structure:
- Chemical Name:Fesoterodine Related Impurity 2
- CAS:1254942-29-4
- MF:C30H39NO6
- Structure:
- Chemical Name:Prasugrel Impurity 13 HCl
- CAS:1618108-01-2
- MF:C18H19ClFNOS
- Structure:
- Chemical Name:Ticagrelor Related Compound 5
- CAS:1414348-35-8
- MF:C9H9F2N
- Structure:
- Chemical Name:Vortioxetine Impurity 2
- CAS:1293489-69-6
- MF:C17H20N2S
- Structure:
- Chemical Name:Chrysin 6-C-arabinoside 8-C-glucoside
- CAS:185145-33-9
- MF:C26H28O13
- Structure:
- Chemical Name:Meloside A
- CAS:60767-80-8
- MF:C27H30O15
- Structure:
- Chemical Name:(S)-2-(2-(5-chloro-N-(4-(5-((5-chlorothiophene-2-carboxamido)methyl)-2-oxooxazolidin-3-yl)phenyl)thiophene-2-carboxamido)ethoxy)acetic acid
- CAS:1151893-81-0
- MF:C24H21Cl2N3O7S2
- Structure:
- Chemical Name:2-[[6-[(3R)-3-tert-butoxycarbonylamino-1-piperidinyl]-3,4-dihydro-2,4-dioxo-3-methyl-1(2H)-pyrimidinyl]methyl]benzonitrile
- CAS:1246610-74-1
- MF:C23H29N5O4
- Chemical Name:Canagliflozin Impurity 12
- CAS:
- MF:
- Chemical Name:Canagliflozin Impurity G
- CAS:
- MF:
- Chemical Name:Dolutegravir Impurity 1
- CAS:
- MF:
- Chemical Name:Empagliflozin impurity F
- CAS:
- MF:
- Chemical Name:Ibrutinib Impurity 12
- CAS:
- MF:
- Structure:
- Chemical Name:Nintedanib impurity J
- CAS:1139457-10-5
- MF:C23H17N3O5
- Structure:
- Chemical Name:DSKNHVUKATXSCQ-GDVCOKDOSA-N
- CAS:188915-50-6
- MF:C14H14ClN3O4S
- Structure:
- Chemical Name:Clarthromycin EP Impurity B
- CAS:299409-85-1
- MF:C37H67NO13
- Structure:
- Chemical Name:(4-Chloro-3-trifluoromethyl-phenyl)-carbamic acid tert-butyl ester
- CAS:352277-93-1
- MF:C12H13ClF3NO2
- Chemical Name:Brexpiprazole Impurity 15
- CAS:
- MF:
- Structure:
- Chemical Name:Edoxaban Impurity 16
- CAS:480450-69-9
- MF:C14H25N5O3
- Chemical Name:Rivaroxaban Impurity 24
- CAS:
- MF:
- Structure:
- Chemical Name:Ticagrelor
- CAS:1265919-24-1
- MF:C12H21NO5
- Structure:
- Chemical Name:Clindamycin (2R-cis)-Diastereomer
- CAS:1440605-46-8
- MF:C18H33ClN2O5S
- Structure:
- Chemical Name:Genistein 7,4'-di-O-β-D-glucopyranoside
- CAS:36190-98-4
- MF:C27H30O15
- Chemical Name:Aprepitant Impurity 3
- CAS:
- MF:
- Chemical Name:Cabozantinib Impurity F
- CAS:
- MF:
- Structure:
- Chemical Name:Cefmetazole sodium Impurity 7
- CAS:60638-57-5
- MF:C11H14N6O4S2
- Chemical Name:Tadalafil EP Impurity I
- CAS:
- MF:
- Structure:
- Chemical Name:1,4'-Bipiperidine, 1'-(phenylmethyl)-
- CAS:116269-53-5
- MF:C17H26N2
- Structure:
- Chemical Name:[2-(4-Methoxyphenyl)-1-methylethyl]-formamide
- CAS:126002-14-0
- MF:C11H15NO2
- Structure:
- Chemical Name:Butanoic acid, 3-oxo-, 1-(phenylmethyl)-3-piperidinyl ester
- CAS:85387-34-4
- MF:C16H21NO3