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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:7-CHLORO-1-ETHYL-6-FLUORO-4-OXO-1,4-DIHYDRO-[1,8]NAPHTHYRIDINE-3-CARBOXYLIC ACID
- CAS:79286-73-0
- MF:C11H8ClFN2O3
- Structure:
- Chemical Name:HYDRIDE-L
- CAS:41639-74-1
- MF:C18H22O4
- Structure:
- Chemical Name:2-Amino-4-trifluoromethoxybenzothiazole
- CAS:235101-36-7
- MF:C8H5F3N2OS
- Structure:
- Chemical Name:7-[(4S)-4-Amino-6-azaspiro[2.4]heptan-6-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-4-oxoquinoline-3-carboxylic acid
- CAS:127254-10-8
- MF:C19H18ClF2N3O3
- Structure:
- Chemical Name:Sitagliptin Carbamoyl -D-Glucuronide
- CAS:940002-59-5
- MF:C23H23F6N5O9
- Structure:
- Chemical Name:5-Hydroxy Desloratadine
- CAS:117811-12-8
- MF:C19H19ClN2O
- Chemical Name:N-(2-((4-amino-6-(3-amino-5-fluorophenyl)pyrimidin-5-yl)oxy)ethyl)-N-methylacrylamide
- CAS:
- MF:
- Structure:
- Chemical Name:(E)-Olopatadine
- CAS:113806-06-7
- MF:C21H23NO3
- Structure:
- Chemical Name:NeMadipine B
- CAS:79925-38-5
- MF:C19H21Cl2NO4
- Structure:
- Chemical Name:N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole
- CAS:957470-59-6
- MF:C24H24F2N4O6S
- Structure:
- Chemical Name:4-Epi-6-epi Doxycycline
- CAS:97583-08-9
- MF:C22H24N2O8
- Structure:
- Chemical Name:Ethyl 3,4-O-Isopropylidene-5-O-methanesulfonylshikimate
- CAS:204254-84-2
- MF:C13H20O7S
- Structure:
- Chemical Name:2-PyrazinecarboxaMide, N,N',N''-[2,4,6-boroxintriyltris[[(1R)-3-Methylbutylidene]iMino[(1S)-2-oxo-1-(phenylMethyl)-2,1-ethanediyl]]]tris-
- CAS:390800-88-1
- MF:C57H69B3N12O9
- Structure:
- Chemical Name:D-hydroxyphenylglycylamoxicillin)
- CAS:188112-75-6
- MF:C24H26N4O7S
- Structure:
- Chemical Name:(1R)-2-chloro-1-(3,4-difluorophenyl)-1-ethanol
- CAS:1212376-05-0
- MF:C8H7ClF2O
- Structure:
- Chemical Name:2-[[(3aR,4S,6R,6aS)-6-[7-Chloro-5-(propylthio)-3H-1,2,3-triazolo[4,5-d]pyrimidin-3-yl]tetrahydro-2,2-dimethyl-4H-cyclopenta-1,3-dioxol-4-yl]oxy]-ethanol
- CAS:376608-75-2
- MF:C17H24ClN5O4S
- Structure:
- Chemical Name:Fluconazole IMpurity F
- CAS:
- MF:C13H12F2N6O
- Structure:
- Chemical Name:Erlotinib IMpurity A
- CAS:1058132-82-3
- MF:C22H25N3O4
- Structure:
- Chemical Name:riboflavin 3',5'-bisphosphate
- CAS:86108-26-1
- MF:C17H22N4O12P2
- Structure:
- Chemical Name:6 beta-hydroxycortisol
- CAS:53-35-0
- MF:C21H30O6
- Structure:
- Chemical Name:16-hydroxyclarithromycin
- CAS:124412-58-4
- MF:C38H69NO14
- Structure:
- Chemical Name:4-METHYL-3-[[1-OXO-2-(PROPYLAMINO)PROPYL]AMINO]-2-THIOPHENECARBOXYLIC ACID
- CAS:114176-52-2
- MF:C12H18N2O3S
- Chemical Name:Apixaban iMpurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:cefaclor iMpurity C
- CAS:143059-69-2
- MF:C15H14ClN3O4S
- Chemical Name:ceftazidiMe iMpurity B
- CAS:1236700-64-3
- MF:
- Structure:
- Chemical Name:pidotiMod iMpurity D
- CAS:162148-15-4
- MF:C9H12N2O4S
- Structure:
- Chemical Name:Irinotecan Hydroxyl Acid
- CAS:142677-15-4
- MF:C22H22N2O6
- Structure:
- Chemical Name:CyclopropanaMine, 2-(4-fluorophenyl)-(hydrochloride)(1:1),(1R,2S)-
- CAS:1314324-00-9
- MF:C9H11ClFN
- Structure:
- Chemical Name:(1S,2S,3R,5S)-3-(7-(((1R,2S)-2-(3,4-difluorophenyl)cyclopropyl)aMino)-5-(propylsulfinyl)-3H-[1,2,3]triazolo[4,5-d]pyriMidin-3-yl)-5-(2-hydroxyethoxy)cyclopentane-1,2-diol
- CAS:1644461-85-7
- MF:C23H28F2N6O5S
- Chemical Name:AtracuriuM IMpurity C (Mixture of DiastereoMers)
- CAS:86293-35-8
- MF:
- Chemical Name:AtracuriuM IMpurity E (cis-Quaternary Acid)
- CAS:
- MF:
- Chemical Name:AztreonaM IMpurity B
- CAS:
- MF:
- Chemical Name:Ceftriaxone IMpurit E
- CAS:
- MF:
- Structure:
- Chemical Name:Cetirizine IMpurity-6
- CAS:
- MF:C21H25ClN2O3
- Structure:
- Chemical Name:Cinacalcet IMpurity 10
- CAS:1809324-40-0
- MF:C29H28F3NO2S
- Chemical Name:Dasatinib IMpurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:Diacerein IMpurity F
- CAS:13928-72-8
- MF:C35H36O16
- Structure:
- Chemical Name:D-Valganciclovir Hydrochloride
- CAS:1393911-57-3
- MF:C14H23ClN6O5
- Chemical Name:Entecavir IMpurity E
- CAS:
- MF:
- Structure:
- Chemical Name:EzetiMibe IMpurity 1
- CAS:190595-66-5
- MF:C24H22FNO3
- Structure:
- Chemical Name:Flurbiprofen IMpurity B
- CAS:1797883-74-9
- MF:C18H17FO4
- Chemical Name:IMatinib DiPiperidine IMpurity
- CAS:
- MF:
- Chemical Name:levocetirizine IMpurity
- CAS:
- MF:
- Chemical Name:OseltaMivir IMpurity F
- CAS:
- MF:
- Chemical Name:RocuroniuM BroMide IMpurity 19
- CAS:
- MF:
- Structure:
- Chemical Name:S-(+)-O-DesMethyl-Venlafaxine-d6
- CAS:1062609-99-7
- MF:C16H25NO2
- Structure:
- Chemical Name:SalMeterol IMpurity F
- CAS:
- MF:C25H37NO4
- Structure:
- Chemical Name:Sitagliptin Defuoro IMpurity 4
- CAS:486459-98-7
- MF:C15H19F2NO4
- Chemical Name:Sulpiride IMpurity F
- CAS:
- MF:
- Structure:
- Chemical Name:trans-Ibuprofen IMpurity G
- CAS:1391054-15-1
- MF:C26H32O4
- Structure:
- Chemical Name:EthanediaMide iMpurity F
- CAS:480452-37-7
- MF:C16H22ClN5O3
- Chemical Name:Paroxetine IMpurity
- CAS:105813-23-8
- MF:
- Structure:
- Chemical Name:7-[(2-aMinoethyl)aMino] -1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
- CAS:
- MF:C14H16FN3O3
- Structure:
- Chemical Name:(S)-(1R,3s,5S)-8-Methyl-8-azabicyclo[3.2.1]oct-6-en-3-yl 3-hydroxy-2-phenylpropanoate
- CAS:61616-97-5
- MF:C17H21NO3
- Structure:
- Chemical Name:ethylmethylglycinexylidide
- CAS:74634-66-5
- MF:C13H20N2O
- Structure:
- Chemical Name:(5-BENZYLIDENE-4-OXO-2-THIOXO-THIAZOLIDIN-3-YL)-ACETIC ACID
- CAS:82159-06-6
- MF:C12H9NO3S2
- Structure:
- Chemical Name:3-NITROPHENYLACETYLENE
- CAS:3034-94-4
- MF:C8H5NO2
- Structure:
- Chemical Name:Amlodipine Impurity 27
- CAS:2832589-38-3
- MF:C26H29ClN2O7S
- Structure:
- Chemical Name:3-(4-Methylimidazol-1-yl)-5-trifluoromethylbenzoic acid
- CAS:641571-13-3
- MF:C12H9F3N2O2
- Structure:
- Chemical Name:3-Morpholinopropyl bromide
- CAS:125422-83-5
- MF:C7H14BrNO
- Structure:
- Chemical Name:7-Phenyl-acetamido-deacetoxy-cephalosporanic-acid
- CAS:27255-72-7
- MF:C16H16N2O4S
- Structure:
- Chemical Name:O-PROPIONYLBENZOIC ACID
- CAS:2360-45-4
- MF:C10H10O3
- Structure:
- Chemical Name:3-METHOXY-L-TYROSINE
- CAS:300-48-1
- MF:C10H13NO4
- Structure:
- Chemical Name:(4S-cis)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester
- CAS:196085-85-5
- MF:C14H23NO4
- Structure:
- Chemical Name:Triacetyl Aloe-emodin (Impurity A)
- CAS:25395-11-3
- MF:C21H16O8
- Structure:
- Chemical Name:O-Benzyl Posaconazole
- CAS:170985-86-1
- MF:C44H48F2N8O4
- Structure:
- Chemical Name:10-trans-Atorvastatin Acetonide tert-Butyl Ester
- CAS:1105067-90-0
- MF:C40H47FN2O5
- Structure:
- Chemical Name:3-Bromo Carbidopa
- CAS:1246819-09-9
- MF:C10H13BrN2O4
- Structure:
- Chemical Name:(4S,6R)-6-(Cyanomethyl)-2,2-dimethyl-1,3-dioxane-4-acetic Acid tert-Butyl Ester
- CAS:186508-95-2
- MF:C14H23NO4
- Structure:
- Chemical Name:(5R)-6-Cyano-5-hydroxy-3-oxo-hexanoic Acid tert-Butyl Ester
- CAS:125988-01-4
- MF:C11H17NO4
- Structure:
- Chemical Name:(4-Carboxy-3-ethoxy)phenyl Acetic Acid (Repaglinide Impurity)
- CAS:220438-80-2
- MF:C11H12O5
- Structure:
- Chemical Name:2-Chloromethyl-3,5-dimethylpyridin-4-ol
- CAS:220771-03-9
- MF:C8H10ClNO
- Structure:
- Chemical Name:(3S,5R)-6-Cyano-3,5-dihydroxy-hexanoic Acid tert-Butyl Ester
- CAS:186508-94-1
- MF:C11H19NO4
- Structure:
- Chemical Name:2-Methyl-6-[(4-methylphenyl)sulfonyl]-1,4,5,6-tetrahydroimidazo[4,5-d][1]benzazepine
- CAS:717917-14-1
- MF:C19H19N3O2S
- Structure:
- Chemical Name:(1R-4S)-4-[[(1,1-dimethylethoxy)carbonyl]amino]- 2-Cyclopentene-1-carboxylic acid methyl ester
- CAS:251326-99-5
- MF:C12H19NO4
- Structure:
- Chemical Name:O-Isobutyryl (R)-Fesoterodine
- CAS:1208313-13-6
- MF:C30H43NO4
- Structure:
- Chemical Name:Isopropyl Itraconazole
- CAS:89848-49-7
- MF:C34H36Cl2N8O4
- Structure:
- Chemical Name:(R)-(-)-Ibuprofen-d3
- CAS:121702-86-1
- MF:C13H18O2
- Structure:
- Chemical Name:(S,R,S,S)-Orlistat
- CAS:111466-63-8
- MF:C29H53NO5
- Structure:
- Chemical Name:N-Trityl Candesartan Ethyl Ester
- CAS:856414-35-2
- MF:C45H38N6O3
- Structure:
- Chemical Name:3R,4S-4-(4-methoxyphenyl)-1-methylpiperi dinyl] methanol
- CAS:127017-78-1
- MF:C14H21NO2
- Structure:
- Chemical Name:6H-Purin-6-one, 2-amino-1,9-dihydro-9-[(1R,3S,4R)-4-hydroxy-3-(hydroxymethyl)-2-methylenecyclopentyl]-
- CAS:188399-46-4
- MF:C12H15N5O3
- Structure:
- Chemical Name:4,4'-(2-HYDROXY-1,3-PROPANDIYLDIOXY)BIS(2-PHENYLACETAMIDE)
- CAS:141650-31-9
- MF:C19H22N2O5
- Structure:
- Chemical Name:Valsartan cyano analog methyl ester
- CAS:137863-90-2
- MF:C25H30N2O3
- Structure:
- Chemical Name:(8S)-2-BroMo α-Ergocryptine
- CAS:65700-36-9
- MF:C32H40BrN5O5
- Structure:
- Chemical Name:3-[4-(4-Chlorobenzoyl)phenoxy]-2-butanone (Fenofibrate IMpurity)
- CAS:217636-47-0
- MF:C17H15ClO3
- Structure:
- Chemical Name:5-(2-Chlorobenzyl)-thieno[3,2-c]pyridiniuM Chloride
- CAS:53885-64-6
- MF:C14H11Cl2NS
- Structure:
- Chemical Name:ClarithroMycin 9-OxiMe
- CAS:103450-87-9
- MF:C38H70N2O13
- Structure:
- Chemical Name:Desloratadine N-Hydroxypiperidine
- CAS:1193725-73-3
- MF:C19H19ClN2O
- Structure:
- Chemical Name:O-DesMethyl Venlafaxine Cyclic IMpurity
- CAS:1346601-55-5
- MF:C16H23NO2
- Structure:
- Chemical Name:rac-cis-2,3-Dichloro Sertraline Hydrochloride
- CAS:1198084-29-5
- MF:C17H18Cl3N
- Structure:
- Chemical Name:11β-Hydroperoxy Dienogest
- CAS:106111-43-7
- MF:C20H25NO4
- Structure:
- Chemical Name:2'-Nor ThiaMine
- CAS:7770-93-6
- MF:C11H15ClN4OS
- Structure:
- Chemical Name:6α-Methyl Hydrocortisone 21-Acetate
- CAS:1625-11-2
- MF:C24H34O6
- Chemical Name:piperacillinylaMpicillin
- CAS:
- MF:
- Chemical Name:Celecoxib iMpurity-B
- CAS:
- MF:
- Chemical Name:EMtricitabine iMpurity B
- CAS:
- MF:
- Structure:
- Chemical Name:(S,S)-1,7-diazatricyclo[7.3.0.07,11]dodecane-2,6,8,12-tetrone
- CAS:14842-41-2
- MF:C10H10N2O4
- Structure:
- Chemical Name:1-Hydroxy-7-Methoxy-1,2,3,4-tetrahydronaphthalene
- CAS:32820-10-3
- MF:C11H14O2
- Structure:
- Chemical Name:BroMhexine Hydrochloride iMpurity DN-(2-AMino-5-broMobenzyl)-N-MethylcyclohexanaMine Dihydrochloride
- CAS:132004-28-5
- MF:C14H21BrN2