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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Ertapenem Impurity B(USP)
- CAS:
- MF:
- Structure:
- Chemical Name:INDEX NAME NOT YET ASSIGNED
- CAS:2458312-06-4
- MF:C27H30N2O6
- Structure:
- Chemical Name:15(R)-17-PHENYL TRINOR PROSTAGLANDIN F2ALPHA
- CAS:41639-71-8
- MF:C23H32O5
- Chemical Name:AlviMopan iMpurity
- CAS:
- MF:
- Chemical Name:Caspofungin iMpurity
- CAS:
- MF:
- Structure:
- Chemical Name:Saxagliptin iMpurity
- CAS:2173146-35-3
- MF:C18H24ClN3O2
- Structure:
- Chemical Name:Chlorocriptine
- CAS:68944-88-7
- MF:C32H40ClN5O5
- Structure:
- Chemical Name:PD 312237
- CAS:501666-23-5
- MF:C20H35NO11
- Structure:
- Chemical Name:(1R,5S,6S)-rel-5-(1-Ethylpropoxy)-7-oxabicyclo[4.1.0]hept-3-ene-3-carboxylic Acid Methyl Ester
- CAS:1234858-94-6
- MF:C13H20O4
- Structure:
- Chemical Name:Posaconazole DiastereoisoMer interMediate 5
- CAS:149809-42-7
- MF:C21H21F2N3O4S
- Structure:
- Chemical Name:Prasugrel alpha-Hydroxy IMpurity
- CAS:1100905-45-0
- MF:C11H11FO2
- Structure:
- Chemical Name:Solifenacin Related CoMpound 2 Succinate
- CAS:1262506-09-1
- MF:C27H32N2O6
- Structure:
- Chemical Name:Tetrahydro FuroseMide
- CAS:4793-38-8
- MF:C12H15ClN2O5S
- Structure:
- Chemical Name:6-O-DesMethoxyethyl-6-O-chloroethyl Erlotinib Hydrochloride
- CAS:183320-04-9
- MF:C21H21Cl2N3O3
- Structure:
- Chemical Name:Macitentan IMpurity
- CAS:556796-88-4
- MF:C17H15Br2N5O4S
- Structure:
- Chemical Name:4-((4-broMophenyl)(1H-1,2,4-triazol-1-yl)Methyl)benzonitrile
- CAS:143030-54-0
- MF:C16H11BrN4
- Structure:
- Chemical Name:Acetic acid, 2-[2-[4-(diphenylMethyl)-1-piperazinyl]ethoxy]-
- CAS:83881-53-2
- MF:C21H26N2O3
- 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:D-hydroxyphenylglycylamoxicillin)
- CAS:188112-75-6
- MF:C24H26N4O7S
- 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:N-[3-[3-(1-Piperidinylmethyl)phenoxy]propyl]amine
- CAS:73278-98-5
- MF:C15H24N2O
- Structure:
- Chemical Name:7,10-Bis-O-(2,2,2-trichloroethoxycarbonyl)-10-deacetylbaccatin III
- CAS:95603-44-4
- MF:C35H38Cl6O14
- Structure:
- Chemical Name:4-(3-AMino-phenyl)-Morpholin-3-one
- CAS:1082495-22-4
- MF:C10H12N2O2
- Structure:
- Chemical Name:2-(DiethylaMino)-N-(2,3-diMethylphenyl)acetaMide Hydrochloride
- CAS:857170-72-0
- MF:C14H23ClN2O
- Structure:
- Chemical Name:4-Hydroxy Darunavir
- CAS:313682-97-2
- MF:C27H37N3O8S
- Structure:
- Chemical Name:Deschloroaripiprazole
- CAS:203395-81-7
- MF:C23H28ClN3O2
- Structure:
- Chemical Name:AlMotriptan Related CoMpound B
- CAS:1246860-65-0
- MF:C19H25N3O6S
- Chemical Name:Benazepril Related CoMpound B
- CAS:
- MF:
- Structure:
- Chemical Name:IMatinib iMpurity
- CAS:152459-96-6
- MF:C24H21N5O
- Structure:
- Chemical Name:(2R,3R,4R,5S,6R)-2-(acetoxyMethyl)-6-(3-((5-(4-fluorophenyl)thiophen-2-yl)Methyl)-4-Methylphenyl)tetrahydro-2H-pyran-3,4,5-triyl triacetate
- CAS:2803372-74-7
- MF:C32H33FO9S
- Structure:
- Chemical Name:1,2-BenzenedicarboxaMide, N1,N2-bis[[(5S)-2-oxo-3-[4-(3-oxo-4-Morpholinyl)phenyl]-5-oxazolidinyl]Methyl]-
- CAS:1365267-36-2
- MF:C36H36N6O10
- Structure:
- Chemical Name:2-QuinazolineMethanol, 4-Methyl-
- CAS:13535-91-6
- MF:C10H10N2O
- Structure:
- Chemical Name:5-(2,2-diMethyl-4H-benzo[d][1,3]dioxin-6-yl)oxazolidin-2-one
- CAS:452340-96-4
- MF:C13H15NO4
- Structure:
- Chemical Name:alpha-(Dimethylaminomethyl)-alpha-ethylbenzyl alcohol hydrochloride
- CAS:104743-23-9
- MF:C12H20ClNO
- Structure:
- Chemical Name:N-[6,9-Dihydro-6-oxo-9-[[2-(1-oxopropoxy)-1-[(1-oxopropoxy)methyl]ethoxy]methyl]-1H-purin-2-yl]propanamide
- CAS:177216-32-9
- MF:C18H25N5O7
- Structure:
- Chemical Name:5-Bromo-1-(4-fluorophenyl)-1,3-dihydro-N,N-dimethyl-1-isobenzofuranpropanamine ethanedioate (1:1)
- CAS:64372-43-6
- MF:C21H23BrFNO5
- Structure:
- Chemical Name:(E)-2-Methyl-4-(4-(2-Methyl-5,10-dihydro-4H-benzo[b]thieno[2,3-e][1,4]diazepin-4-yl)piperazin-1-yl)-10H-benzo[b]thieno[2,3-e][1,4]diazepine
- CAS:1070876-09-3
- MF:C28H26N6S2
- Structure:
- Chemical Name:(1S,2S,3R,5S)-PinanediolN-BOC-L-phenylalanine-L-leucine boronate
- CAS:1187479-72-6
- MF:C29H45BN2O5
- Structure:
- Chemical Name:Posaconazole iMpurity 7
- CAS:2180759-84-4
- MF:C37H42F2N8O4
- Structure:
- Chemical Name:Intedanib Impurity
- CAS:2243396-74-7
- MF:C31H32N6O6
- 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:C25H25ClFNO3
- 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:
- Chemical Name:Itraconazole iMpurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Edoxaban Isomer (RRR)
- CAS:1255529-24-8
- MF:C24H30ClN7O4S
- Structure:
- Chemical Name:1-NaphthaleneacetaMide, 1,2,3,4-tetrahydro-7-Methoxy-
- CAS:92041-01-5
- MF:C13H17NO2
- Structure:
- Chemical Name:DO2A
- CAS:112193-75-6
- MF:C12H24N4O4
- Structure:
- Chemical Name:7-ethyl-5H-chroMeno[2,3-b]pyridin-5-one
- CAS:53944-31-3
- MF:C14H11NO2
- Structure:
- Chemical Name:2-Methyl-10H-thieno[2,3-b][1,5]benzodiazepin-4-aMine
- CAS:612503-08-9
- MF:C12H11N3S
- Chemical Name:IMp. A (EP): 8-Chloro-5,10-dihydro-11H-dibenzo[b,e][1,4]diazepin-11-one
- CAS:
- MF:
- Chemical Name:IMp. C (EP): 8-Chloro-11-(piperazin-1-yl)-5H- dibenzo[b,e][1,4]diazepine
- CAS:
- MF:
- Structure:
- Chemical Name:21-Dehydro-16α-hydroxy Prednisolone
- CAS:1188271-73-9
- MF:C21H26O6
- Structure:
- Chemical Name:O-[(Guanin-9-yl)Methyl] Acyclovir
- CAS:166762-90-9
- MF:C14H16N10O4
- Structure:
- Chemical Name:3-(4-Carboethoxy)phenyl propanal
- CAS:151864-81-2
- MF:C12H14O3
- Structure:
- Chemical Name:(2,6-Xylyloxy)acetyl Lopinavir
- CAS:943250-65-5
- MF:C47H58N4O7
- Structure:
- Chemical Name:(S)-IsotiMolol (TiMolol IMpurity B)
- CAS:158636-96-5
- MF:C13H24N4O3S
- Chemical Name:Afatinib IMpurity A
- CAS:
- MF:
- Chemical Name:Afatinib IMpurity G
- CAS:
- MF:
- Chemical Name:Articaine IMpurity F (Articaine Acid PropionaMide HCl)
- CAS:
- MF:
- Structure:
- Chemical Name:Avanafil iMpurity 4
- CAS:874482-97-0
- MF:C8H11Cl2NO
- Structure:
- Chemical Name:Clopidogrel IMpurity 4
- CAS:801319-16-4
- MF:C15H14ClNO2S
- 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: