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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:Dehydro Azelnidipine
- CAS:918659-10-6
- MF:C33H32N4O6
- Structure:
- Chemical Name:DiazepaM IMpurity F
- CAS:31269-33-7
- MF:C16H13ClN2O
- Chemical Name:LaMotrigine IMpurity
- CAS:
- MF:
- 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
- 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:N1-Losartanyl-losartan (Losartan IMpurity)
- CAS:230971-71-8
- MF:C44H44Cl2N12O
- Structure:
- Chemical Name:N2-Losartanyl-losartan (Losartan IMpurity)
- CAS:230971-72-9
- MF:C44H44Cl2N12O
- Structure:
- Chemical Name:N-Ethoxycarbonyl 7-ADCA
- CAS:72820-16-7
- MF:C11H14N2O5S
- Structure:
- Chemical Name:4-PyridinecarboxaMide, N-(2,6-diMethylphenyl)-
- CAS:68280-05-7
- MF:C14H14N2O
- Structure:
- Chemical Name:4-N-Desacetyl-5-N-acetyl OseltaMivir
- CAS:956267-10-0
- MF:C16H28N2O4
- Structure:
- Chemical Name:rac N-DesMethyl-N-(4-Methoxyphenethyl) Venlafaxine
- CAS:1346601-14-6
- MF:C25H35NO3
- Structure:
- Chemical Name:11-Keto Oxcarbazepine
- CAS:537693-29-1
- MF:C15H10N2O3
- Structure:
- Chemical Name:Isopropyl 4-(3-AMinophenyl)-1,4-dihydro-5-(2-Methoxyethoxycarbonyl)-2,6-diMethylpyridine-3-carboxylate
- CAS:155861-24-8
- MF:C21H28N2O5
- 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:Salmeterol Related Compound B (10 mg) (4-{1-Hydroxy-2-[6-(4-phenylbutan-2-yloxy)hexylamino]ethyl}-2-(hydroxymethyl)phenol)
- CAS:108928-81-0
- MF:C25H37NO4
- 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: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:Eriodictyol dihydrochalcone
- CAS:57765-66-9
- MF:C15H14O6
- Structure:
- Chemical Name:2,4'-Diamino[sulfonylbisbenzene]
- CAS:27147-69-9
- MF:C12H12N2O2S
- Structure:
- Chemical Name:2-p-Tolyloxymethyl-oxirane
- CAS:2186-24-5
- MF:C10H12O2
- Structure:
- Chemical Name:3-Hydroxyazobenzene
- CAS:2437-11-8
- MF:C12H10N2O
- Structure:
- Chemical Name:Astragalin 7-O-β-D-glucopyranoside
- CAS:25615-14-9
- MF:C27H30O16
- Chemical Name:LS01-I01
- CAS:
- MF:
- Structure:
- Chemical Name:4-(5-Chloro-2-thienyl)-1,3-thiazol-2-amine
- CAS:123971-45-9
- MF:C7H5ClN2S2
- Structure:
- Chemical Name:α,α-Dibromo-o-tolunitrile
- CAS:655-63-0
- MF:C8H5Br2N
- 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:D-hydroxyphenylglycylamoxicillin)
- CAS:188112-75-6
- MF:C24H26N4O7S
- 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
- Structure:
- Chemical Name:2-(DiMethylcarbaMoyl)benzoic acid, 97%
- CAS:20320-37-0
- MF:C10H11NO3
- Structure:
- Chemical Name:Rac desmethyl citalopram hydrochloride
- CAS:97743-99-2
- MF:C19H19FN2O
- Structure:
- Chemical Name:rac-3-Oxo Atorvastatin SodiuM Salt
- CAS:1391052-00-8
- MF:C33H34FN2NaO5
- Structure:
- Chemical Name:2-Demethoxy-4-methoxy urapidil
- CAS:34661-79-5
- MF:C20H29N5O3
- Structure:
- Chemical Name:Ribavirin IMpurity F
- CAS:58151-87-4
- MF:C10H14N4O6
- Structure:
- Chemical Name:4-[-((-((4-(5-(Bis(2-hydroxyethyl)aMino)-1-Methyl-1H-benzo[d]iMidazol-2-yl)butanoyl)oxy)ethyl)(2-hydroxyethyl)aMino)-1-Methyl-1H-benzo[d]iMidazol-2-yl)butanic Acid
- CAS:1228551-91-4
- MF:C32H41Cl3N6O4
- Structure:
- Chemical Name:3-(6,7-Dihydro-2-Methyl-7-oxo-3-propyl-2H-pyrazolo[4,3-d]pyriMidin-5-yl)-4-ethoxy-benzenesulfonyl Chloride
- CAS:501120-42-9
- MF:C17H19ClN4O4S
- Structure:
- Chemical Name:(3R,4S)-rel-3-[(1,3-Benzodioxol-5-yloxy)Methyl]-4-(4'-fluoro[1,1'-biphenyl]-4-yl)-piperidine Hydrochloride
- CAS:1217655-87-2
- MF:C25H24FNO3.ClH
- Structure:
- Chemical Name:(16α)-16,17-[Butylidenebis(oxy)]-21-hydroxypregna-1,4-diene-3,11,20-trione
- CAS:216453-74-6
- MF:C25H32O6
- Structure:
- Chemical Name:6(S)-Hydroperoxy Simvastatin
- CAS:149949-01-9
- MF:C25H38O7
- Structure:
- Chemical Name:Russupteridine IV
- CAS:2535-20-8
- MF:C13H18N4O6
- Structure:
- Chemical Name:2-[(1-Benzylpiperidin-4-yl)hydroxyMethyl]-5,6-diMethoxyindan-1-one
- CAS:197010-20-1
- MF:C24H29NO4
- Structure:
- Chemical Name:5,6-trans-Ergocalciferol
- CAS:51744-66-2
- MF:C28H44O
- Structure:
- Chemical Name:(5R)-ethyl 5-((1R,3aS,7aR)-4-((E)-2-((3S,5R)-3,5-bis(tert-butyldiMethylsilyloxy)-2-Methylenecyclohexylidene)ethyl)-7a-Methyloctahydro-1H-inden-1-yl)hexanoate
- CAS:169900-32-7
- MF:C39H70O4Si2
- Structure:
- Chemical Name:2-isonicotinoyl-5,6-diMethoxy-2,3-dihydro-1H-inden-1-one
- CAS:923571-15-7
- MF:C17H15NO4
- Structure:
- Chemical Name:4-(2-nitrophenyl)Morpholin-3-one
- CAS:845729-41-1
- MF:C10H10N2O4
- Structure:
- Chemical Name:Irbesartan IMpurity E
- CAS:
- MF:C25H28N6O
- Structure:
- Chemical Name:LeflunoMide EP IMpurity G
- CAS:724429-16-7
- MF:C12H12N2O2
- Chemical Name:Telmisartan impurity C
- CAS:
- MF: