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Pharmaceutical Impurity Reference Standards
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- Chemical Name:Lamivudine impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:Raltitrexed Impurity 1
- CAS:1378372-01-0
- MF:C10H10N2O2
- Structure:
- Chemical Name:Loratadine Impurity 6
- CAS:
- MF:C22H23ClN2O2
- Chemical Name:Mirabegron Impurity 3
- CAS:
- MF:
- Chemical Name:Plerixafor Impurity C
- CAS:
- MF:
- Chemical Name:Vonoprazan Impuirty 8
- CAS:
- MF:
- Chemical Name:Sitagliptin IMpurity 4
- CAS:
- MF:
- Chemical Name:Brexpiprazole Impurity1
- CAS:
- MF:
- Chemical Name:Acarbose Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Alvimopan Impurity 1
- CAS:2250243-53-7
- MF:C14H19NO
- Chemical Name:Febuxostat Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Fingolimod Hexyl Impurity
- CAS:1201794-93-5
- MF:C17H29NO2
- Chemical Name:Palbociclib Impurity 1
- CAS:
- MF:
- Chemical Name:Trelagliptin Impurity 8
- CAS:
- MF:
- Structure:
- Chemical Name:Bromhexine Impurity H
- CAS:63471-27-2
- MF:C14H21BrN2
- Structure:
- Chemical Name:Apixaban Impurity 17
- CAS:1423803-24-0
- MF:C20H19N5O3
- Structure:
- Chemical Name:Rivaroxaban Impurity 11
- CAS:1411775-06-8
- MF:C14H17N3O4
- Structure:
- Chemical Name:(R)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenyl propionate
- CAS:
- MF:C25H35NO3
- Chemical Name:Flomoxef Impurity 4
- CAS:
- MF:
- Chemical Name:Nicardipine Impurity 5
- CAS:
- MF:
- Structure:
- Chemical Name:11,11'-(PIPERAZINE-1,4-DIYL)-BIS-8-CHLORO-5H-DIBENZE[B,E][1,4]-DIAZEPINE
- CAS:263366-81-0
- MF:C30H24Cl2N6
- Structure:
- Chemical Name:Sacubitril Impurity 7
- CAS:149709-44-4
- MF:C22H25NO5
- Structure:
- Chemical Name:Valsartan Impurity 5
- CAS:1266616-11-8
- MF:C18H21N5
- Structure:
- Chemical Name:3-Hydroxy Agomelatine
- CAS:166526-99-4
- MF:C15H17NO3
- Structure:
- Chemical Name:Milnacipran Impurity 4
- CAS:1353644-49-1
- MF:C15H21NO2
- Structure:
- Chemical Name:(3S,5R)-Atorvastatin
- CAS:887324-52-9
- MF:C33H35FN2O5
- Structure:
- Chemical Name:Heptyl Deoctyl Fingolimod Hydrochloride
- CAS:745767-97-9
- MF:C18H31NO2
- Structure:
- Chemical Name:Tenofovir Fumarate
- CAS:1246812-23-6
- MF:C21H34N5O9P
- Structure:
- Chemical Name:Prucalopride Impurity C
- CAS:1599434-55-5
- MF:C17H24ClN3O3
- Structure:
- Chemical Name:1-cyclopropyl-7-fluoro-8-methoxy-6-((4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
- CAS:2205053-60-5
- MF:C21H24FN3O4
- Structure:
- Chemical Name:Brexpiprazole N-Oxide
- CAS:1191900-58-9
- MF:C25H27N3O3S
- Structure:
- Chemical Name:2,6-Dibenzyloxyacetophenone
- CAS:3886-19-9
- MF:C22H20O3
- Structure:
- Chemical Name:ethyl(4aS,9bR)-6-bromo-1,3,4,4a,5,9b-hexahydro-2H-pyrido[4,3-b]indole-2-carboxylate
- CAS:1059630-08-8
- MF:C14H17BrN2O2
- Structure:
- Chemical Name:diphenhydramine impurity
- CAS:
- MF:C17H21NO
- Structure:
- Chemical Name:Pyridine, 4-chloro-2-(chloromethyl)-3,5-dimethyl-, hydrochloride
- CAS:143016-68-6
- MF:C8H10Cl3N
- Structure:
- Chemical Name:1,1-dimethyl-4-(2-methyl-10H-benzo[b]thieno[2,3-e][1,4]diazepin-4-yl)piperazin-1-ium iodide
- CAS:
- MF:C18H23IN4S
- Structure:
- Chemical Name:2-(4-butoxy-3-cyanophenyl)-4-methylthiazole-5-carboxylic acid
- CAS:1657014-33-9
- MF:C16H16N2O3S
- Structure:
- Chemical Name:vildagliptin Impurity O
- CAS:2253194-12-4
- MF:C12H18N4O2
- Structure:
- Chemical Name:methyl (41R,12S,13aR)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate
- CAS:38990-17-9
- MF:C21H26N2O3
- Structure:
- Chemical Name:1-(3-ethoxy-4-methoxyphenyl)-2-(methylsulfonyl)ethenamine
- CAS:1450657-31-4
- MF:C12H17NO4S
- Chemical Name:Apremilast Impurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Canagliflozin Impurity 17
- CAS:1951467-28-9
- MF:C24H23FO6S
- Chemical Name:Canagliflozin Impurity 22
- CAS:
- MF:
- Chemical Name:Carfilzomib Impurity 3
- CAS:
- MF:
- Chemical Name:Dolutegravir Impurity 4
- CAS:
- MF:
- Chemical Name:Febuxostat Impurity 20
- CAS:
- MF:
- Chemical Name:Lenvatinib Impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:methyl (41S,12S,13aR)-13a-ethyl-12-hydroxy-2,3,41,5,6,12,13,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylate
- CAS:83508-82-1
- MF:C21H26N2O3
- Structure:
- Chemical Name:4-[6-[(8-cyclopentyl-6-ethenyl-7,8-dihydro-5-methyl-7-oxopyrido[2,3-d]pyrimidin-2-yl)amino]-3-pyridinyl]-1-piperazinecarboxylic acid tert-butyl ester
- CAS:1941177-45-2
- MF:C29H37N7O3
- Structure:
- Chemical Name:Cabozantinib impurity 1
- CAS:748707-58-6
- MF:C17H16N2O3
- Structure:
- Chemical Name:Amlodipine Impurity 19
- CAS:
- MF:C26H31ClN2O8S
- Structure:
- Chemical Name:Amlodipine Impurity 9
- CAS:90445-05-9
- MF:C26H31ClN2O8S
- Structure:
- Chemical Name:Clopidogrel Impurity 7
- CAS:444728-13-6
- MF:C15H15ClN2OS
- Structure:
- Chemical Name:Rivaroxaban Impurity 36
- CAS:1770812-39-9
- MF:C19H17Cl2N3O5S
- Structure:
- Chemical Name:(S)-methyl 2-((2'-(2H-tetrazol-5-yl)biphenyl-4-yl)methylamino)-3-methylbutanoate
- CAS:1111177-24-2
- MF:C20H23N5O2
- Structure:
- Chemical Name:Clopidogrel Impurity C
- CAS:1346605-15-9
- MF:C16H18ClNO2S
- Structure:
- Chemical Name:Nilotinib genotoxic impurity 2
- CAS:1157857-29-8
- MF:C19H15F3N4O3
- Structure:
- Chemical Name:NCFJJNFEEPMRAQ-XMMPIXPASA-N
- CAS:1453221-45-8
- MF:C35H41F6N3O6
- Chemical Name:Gliclazide Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Ethyl 1-butanesulfonate
- CAS:2374-68-7
- MF:C6H14O3S
- Structure:
- Chemical Name:OLANEXIDINE intermediate
- CAS:60852-95-1
- MF:C10H20N4
- Structure:
- Chemical Name:1H-Isoindole, octahydro-, trans-
- CAS:10479-63-7
- MF:C8H15N
- Structure:
- Chemical Name:1H-Purine-2,6-dione,8-[2-(3,4-dihydroxyphenyl)ethenyl]-1,3-diethyl-3,7-dihydro-7-methyl-, (E)-(9CI)
- CAS:155272-03-0
- MF:C18H20N4O4
- Structure:
- Chemical Name:Hexanoicacid, 3-(2-amino-2-oxoethyl)-5-methyl-, (3S)-
- CAS:181289-34-9
- MF:C9H17NO3
- Structure:
- Chemical Name:Ethanedioic acid, monoethyl ester, 2-(4-methoxyphenyl)hydrazide
- CAS:2614-10-0
- MF:C11H14N2O4
- Structure:
- Chemical Name:4-Pyridinecarboxamide, N-[2-(nitrooxy)ethyl]-, mononitrate
- CAS:65141-48-2
- MF:C8H10N4O7
- Structure:
- Chemical Name:1-[3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-5-hydroxy-pyrimidine-2,4-dione
- CAS:69321-95-5
- MF:C9H12N2O7
- Structure:
- Chemical Name:2-(ACETOXYMETHYL)-4-METHOXY-3,5-DIMETHYLPYRIDINE
- CAS:91219-90-8
- MF:C11H15NO3
- Structure:
- Chemical Name:4,4'-(4H-1,2,4-TRIAZOL-4-YLMETHYLENE)BIS BENZONITRILE
- CAS:112809-52-6
- MF:C17H11N5
- Structure:
- Chemical Name:Pregna-1,4,9(11)-triene-3,20-dione,21-(acetyloxy)-17-hydroxy-6-methyl-, (6a)-
- CAS:93239-37-3
- MF:C24H30O5
- Chemical Name:Tadalafil EP impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:TF-A
- CAS:134965-85-8
- MF:C12H7ClN6
- Structure:
- Chemical Name:myricetin 3-O-β-D-xylopyranosyl(1-2)-β-D-glucopyranoside
- CAS:142449-93-2
- MF:C26H28O17
- Structure:
- Chemical Name:(S)-1-(2-Aminoacetyl)-pyrrolidine-2-carbonitrile
- CAS:914070-99-8
- MF:C7H11N3O
- Structure:
- Chemical Name:1-(4-fluorobenzyl)-3-(4-isobutoxybenzyl)urea
- CAS:1388858-78-3
- MF:C19H23FN2O2
- Structure:
- Chemical Name:1,4,7,10-Tetraazabicyclo[8.2.2]tetradecan-11-one
- CAS:220182-11-6
- MF:C10H20N4O
- Structure:
- Chemical Name:Ropivacaine EP Impurity D
- CAS:98626-59-6
- MF:C16H24N2O
- Structure:
- Chemical Name:Bendamustine Impurity 16
- CAS:914626-65-6
- MF:C19H18N6O4
- Structure:
- Chemical Name:(S)-N-methyl-3-(naphthalen-1-yloxy)-3-(thiophen-3-yl)propan-1-amine hydrochloride
- CAS:959392-22-4
- MF:C18H19NOS
- Structure:
- Chemical Name:phenyl (R)-methyl(3-(naphthalen-1-yloxy)-3-(thiophen-2-yl)propyl)carbamate
- CAS:603996-87-8
- MF:C8H11NO2S
- Chemical Name:Aprepitant Impurity 23
- CAS:
- MF:
- Chemical Name:Canagliflozin impurity H
- CAS:
- MF:
- Structure:
- Chemical Name:Cefazolin Impurity 9
- CAS:1322626-65-2
- MF:C14H15N9O3S3
- Structure:
- Chemical Name:Dapagliflozin Impurity 20
- CAS:2040305-09-5
- MF:C29H33ClO10
- Structure:
- Chemical Name:Edaravone Impurity 10
- CAS:710307-89-4
- MF:C10H12N2O2
- Chemical Name:Empagliflozin Impurity 23
- CAS:
- MF:
- Structure:
- Chemical Name:Entecavir Impurity 3
- CAS:1391053-94-3
- MF:C12H15N5O4
- Chemical Name:IBrutinib Impurity C
- CAS:
- MF:
- Chemical Name:Imatinib impurity 12
- CAS:
- MF:
- Chemical Name:Isavuconazole Impurity 20
- CAS:
- MF:
- Chemical Name:Isavuconazole Impurity 26
- CAS:
- MF:
- Chemical Name:Istradefylline impurity D
- CAS:
- MF:
- Structure:
- Chemical Name:Leuprorelin EP Impurity F
- CAS:1872435-00-1
- MF:C59H84N16O12
- Chemical Name:Linagliptin Impurity 40
- CAS:
- MF:
- Structure:
- Chemical Name:Minocycline N-Hydroxymethyl Impurity
- CAS:1075240-33-3
- MF:C24H29N3O8
- Structure:
- Chemical Name:Mivacurium Chloride Impurity 3
- CAS:740777-60-0
- MF:C33H46NO9+
- Structure:
- Chemical Name:Mupirocin EP Impurity E
- CAS:71087-96-2
- MF:C26H44O9
- Chemical Name:Nifuratel Impurity 7
- CAS:
- MF:
- Structure:
- Chemical Name:Norepinephrine EP Impurity D
- CAS:1932110-67-2
- MF:C9H13NO3
- Chemical Name:Olaparib Impurity 4
- CAS:
- MF: