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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:Difluoro Atorvastatin
- CAS:693794-20-6
- MF:C66H66CaF4N4O10
- Structure:
- Chemical Name:(4S,trans)-1,1-Dimethylethyl-6-aminoethyl-2,2-dimethyl-1,3-dioxane-4-acetate
- CAS:1105067-89-7
- MF:C14H27NO4
- Structure:
- Chemical Name:rac 5-Keto Fluvastatin
- CAS:1160169-39-0
- MF:C24H24FNO4
- Structure:
- Chemical Name:9-Piperazino Ofloxacin
- CAS:197291-75-1
- MF:C18H20FN3O4
- Structure:
- Chemical Name:Thyroxine-4-hydroxy-3,5-diiodophenyl Ether DISCONTINUED
- CAS:911661-90-0
- MF:C21H13I6NO5
- Structure:
- Chemical Name:3-(3-Chloropropyl)-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-3-benzazepin-2-one
- CAS:85175-65-1
- MF:C15H20ClNO3
- Structure:
- Chemical Name:N-DesMethyl TelMisartan
- CAS:144701-81-5
- MF:C32H28N4O2
- Structure:
- Chemical Name:N-De[2-(Methylsulfonyl)ethyl] Lapatinib
- CAS:697299-82-4
- MF:C26H20ClFN4O2
- Structure:
- Chemical Name:N-[(3,4-DiMethoxy-2-pyridinyl)Methyl] Pantoprazole Sulfide
- CAS:957470-58-5
- MF:C24H24F2N4O5S
- Structure:
- Chemical Name:3-Oxo Rosuvastatin SodiuM Salt
- CAS:1346606-28-7
- MF:C22H25FN3NaO6S
- Structure:
- Chemical Name:Famciclovir Related Compound A (20 mg) (2-[2-(2-Amino-9H-purin-9-yl)ethyl]propane-1,3-diol hydrochloride)
- CAS:246021-75-0
- MF:C10H16ClN5O2
- Structure:
- Chemical Name:Olopatadine USP RC B
- CAS:173174-07-7
- MF:C21H23NO4
- Structure:
- Chemical Name:Ramipril Related Compound A (30 mg) ((2S,3aS,6aS)-1-[(S)2-[[(S)-1-(methoxycarbonyl)-3-phenylpropyl]amino]-1-oxopropyl]-octahydrocyclopenta[b]pyrrole-2-carboxylic acid)
- CAS:108313-11-7
- MF:C22H30N2O5
- Structure:
- Chemical Name:4-(4-(4-(4-(((3S,5S)-5-((1H-1,2,4-triazol-1-yl)Methyl)-5-(2,4-difluorophenyl)tetrahydrofuran-3-yl)Methoxy)phenyl)piperazin-1-yl)phenyl)-1-((2R,3R)-2-hydroxypentan-3-yl)-1H-1,2,4-triazol-5(4H)-one
- CAS:2243785-97-7
- MF:C37H42F2N8O4
- Structure:
- Chemical Name:4-(4-broMo-3-(hydroxyMethyl)phenoxy)benzonitrile
- CAS:906673-45-8
- MF:C14H10BrNO2
- Structure:
- Chemical Name:ACT 080803
- CAS:1433875-21-8
- MF:C16H13Br2N5O2
- Structure:
- Chemical Name:L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-Methylethyl ester, (Pā3'),(P'ā5')-diester with (2'R)-2'-deoxy-2'-fluoro-2'-Methyluridine
- CAS:1337482-17-3
- MF:C34H45FN4O13P2
- Structure:
- Chemical Name:Pyrido[2,3-d]pyriMidin-7(8H)-one, 2,6-dibroMo-8-cyclopentyl-5-Methyl-
- CAS:1415560-29-0
- MF:C13H13Br2N3O
- Structure:
- Chemical Name:Albendazole EP Impurity J
- CAS:946498-41-5
- MF:C9H7Cl2N3O2
- Structure:
- Chemical Name:Ibrutinib Dimer Impurity
- CAS:2031255-23-7
- MF:C50H48N12O4
- Structure:
- Chemical Name:Rifaximin EP Impurity H
- CAS:1210022-90-4
- MF:C43H51N3O12
- Structure:
- Chemical Name:Voriconazole (2R,3R)-Isomer
- CAS:137234-76-5
- MF:C16H13ClF3N5O
- Structure:
- Chemical Name:Diquafosol Impurity 12
- CAS:694434-51-0
- MF:C18H26N4O23P4
- Structure:
- Chemical Name:Etoricoxib Impurity 39
- CAS:107825-28-5
- MF:C13H17NOS2
- Structure:
- Chemical Name:Furosemide Impurity 7
- CAS:4753-68-8
- MF:C5H8ClNO
- Structure:
- Chemical Name:1,1'-[1,3-Propanediylbis(oxy)]bis[2,5-dimethylbenzene]
- CAS:415724-02-6
- MF:C19H24O2
- Structure:
- Chemical Name:1-Dimethylamino-2-phenylbutan-2-yl 3,4,5-trimethoxybenzoate
- CAS:92414-09-0
- MF:C22H29NO5
- Structure:
- Chemical Name:Celecoxib 2-Methyl Analog
- CAS:170569-99-0
- MF:C17H14F3N3O2S
- Structure:
- Chemical Name:EMpagliflozin iMpurity 6
- CAS:1620758-21-5
- MF:C32H37ClO12
- Chemical Name:EMpagliflozin iMpurity 11
- CAS:
- MF:
- Structure:
- Chemical Name:1,4,7,10-Tetraazacyclododecane-1,4,7-triacetic acid,10-[2,3-dihydroxy-1-(hydroxymethyl)propyl]-
- CAS:138168-36-2
- MF:C18H34N4O9
- Structure:
- Chemical Name:Di-Norbudesonide (Mixture of DiastereoMers)
- CAS:1040085-98-0
- MF:C23H30O6
- Structure:
- Chemical Name:Linagliptin MethyldiMer
- CAS:1418133-47-7
- MF:C50H56N16O4
- Structure:
- Chemical Name:Trelagliptin Impurity isomer
- CAS:2206135-35-3
- MF:C18H20FN5O2
- Structure:
- Chemical Name:(2R,3R,4R,5S,6R)-2-(4-chloro-3-(4-ethoxybenzyl)phenyl)-6-(hydroxyMethyl)tetrahydro-2H-pyran-3,4,5-triol
- CAS:
- MF:C21H25ClO6
- Structure:
- Chemical Name:3,6-Dichloropyrazine-2-carboxaMide
- CAS:1023813-21-9
- MF:C5H3Cl2N3O
- Structure:
- Chemical Name:N-acetic acid-1-aMino-3-adaMantanol
- CAS:1032564-18-3
- MF:C12H19NO3
- Structure:
- Chemical Name:9(10H)-Acridinone, 2-ethoxy-6-nitro-
- CAS:451460-48-3
- MF:C15H12N2O4
- Chemical Name:Olaparib iMpurity D
- CAS:
- MF:
- Structure:
- Chemical Name:(5-broMo-2-chlorophenyl)(4-hydroxyphenyl)Methanone
- CAS:1360568-68-8
- MF:C13H8BrClO2
- Structure:
- Chemical Name:(2-broMo-4,5-diMethylphenyl)Methanol
- CAS:1126385-20-3
- MF:C9H11BrO
- Chemical Name:Posaconazole iMpurity 8
- CAS:
- MF:
- Structure:
- Chemical Name:LCZ Impurity
- CAS:753421-85-1
- MF:C20H25NO2
- Structure:
- Chemical Name:Dehydro Benidipine
- CAS:118935-44-7
- MF:C28H29N3O6
- Structure:
- Chemical Name:Etoposide Impurity B
- CAS:100007-56-5
- MF:C29H32O13
- Structure:
- Chemical Name:Istradefylline Impurity 2
- CAS:606080-73-3
- MF:C20H24N4O4
- Structure:
- Chemical Name:Oxonic Acid Impurity 1
- CAS:60301-55-5
- MF:C3H3N3O2
- Structure:
- Chemical Name:Vortioxetine Impurity 4
- CAS:1293489-77-6
- MF:C18H22N2S
- Structure:
- Chemical Name:Zidovudine USP Impurity G
- CAS:148665-49-0
- MF:C20H25N7O8
- Structure:
- Chemical Name:Quinoline, 6,7-dimethoxy-4-(4-nitrophenoxy)-
- CAS:190728-24-6
- MF:C17H14N2O5
- Structure:
- Chemical Name:Itopride Impurity A
- CAS:943518-63-6
- MF:C16H17NO4
- Chemical Name:Aripiprazole N1-Oxide
- CAS:
- MF:
- Chemical Name:Aripiprazole N1-Oxide
- CAS:
- MF:
- Structure:
- Chemical Name:1-METHYL-5-MERCAPTOTETRAZOLE, SODIUM SALT
- CAS:51138-06-8
- MF:C2H3N4NaS
- Structure:
- Chemical Name:Irinotecan Impurity 24
- CAS:802277-44-7
- MF:C13H24N2O2
- Structure:
- Chemical Name:Pyridoxine Impurity 12
- CAS:58947-70-9
- MF:C8H9NO3
- Structure:
- Chemical Name:Thiamine
- CAS:6309-04-2
- MF:C13H20Br2N4OS
- Structure:
- Chemical Name:1,1'-(1,4,8,11-tetraazacyclotetradecane-1,4-diyl)bis(2,2,2- trifluoroethan-1-one) dihydrochloride
- CAS:
- MF:C14H24Cl2F6N4O2
- Chemical Name:Empagliflozin Impurity 40
- CAS:
- MF:
- Chemical Name:Empagliflozin Impurity 46
- CAS:
- MF:
- Structure:
- Chemical Name:Mupirocin Impurity P/Decyl [2E,8[2S,3S(1S,2S)]]-5,9-Anhydro-2,3,4,8-tetradeoxy-8-[[3-(2-hydroxy-1-methylpropyl)oxiranyl]methyl]-3-methyl-L-talo-Non-2-enonic Acid Ester
- CAS:153900-96-0
- MF:C27H48O7
- Structure:
- Chemical Name:Aprepitant
- CAS:1242175-38-7
- MF:C20H18F7NO2
- Structure:
- Chemical Name:pranoprofen
- CAS:143436-36-6
- MF:C17H19NO4
- Structure:
- Chemical Name:2-[(1,3-dihydro-1-hydroxy-2,1-benzoxaborol-5-yl)oxy]Benzonitrile
- CAS:906673-30-1
- MF:C14H10BNO3
- Structure:
- Chemical Name:Fluconazole Impurity 5
- CAS:154534-83-5
- MF:C10H9ClF2N4O
- Structure:
- Chemical Name:Fexofenadine N-Oxide
- CAS:1422515-52-3
- MF:C32H39NO5
- Structure:
- Chemical Name:Trimetazidine Impurity 16
- CAS:118709-62-9
- MF:C13H16O4
- Structure:
- Chemical Name:Ortho-Isomer of Dapagliflozin
- CAS:2040305-05-1
- MF:C21H25ClO6
- Chemical Name:Acarbose Impurity H
- CAS:
- MF:
- Chemical Name:Acarbose Impurity H
- CAS:
- MF:
- Structure:
- Chemical Name:Chidamide-13C7
- CAS:1348337-81-4
- MF:C24H18N4O4
- Structure:
- Chemical Name:Imidafenacin Related Compound 9
- CAS:170105-17-6
- MF:C21H21N3
- Chemical Name:Atracurium Impurity M
- CAS:
- MF:
- Chemical Name:Cefminox Sodium impurity 1
- CAS:
- MF:
- Chemical Name:Dapagliflozin Impurity 5
- CAS:
- MF:
- Chemical Name:Emtricitabine Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Furosemide Impurity 4
- CAS:
- MF:C12H11ClN2O5S
- Chemical Name:Pitavastatin Impurity 43
- CAS:
- MF:
- Structure:
- Chemical Name:Tazobactam Impurity B
- CAS:158411-82-6
- MF:C6H11NO3S
- Chemical Name:Tirofiban Impurity E
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 73
- CAS:
- MF:
- Chemical Name:Tofacitinib Impurity 82
- CAS:
- MF:
- Chemical Name:Apixaban Impurity 37
- CAS:
- MF:
- Chemical Name:Atracurium Impurity 27
- CAS:
- MF:
- Chemical Name:Aztreonam Impurity 3
- CAS:
- MF:
- Chemical Name:Aztreonam Impurity 9
- CAS:
- MF:
- Chemical Name:Bendamustine Impurity 24
- CAS:
- MF:
- Structure:
- Chemical Name:Bosutinib Impurity 4
- CAS:142072-71-7
- MF:C10H11NO4
- Chemical Name:Cefazolin EP Impurity L
- CAS:
- MF:
- Chemical Name:Cefoxitin Impurity 2
- CAS:
- MF:
- Chemical Name:Clotrimazole Impurity 4
- CAS:
- MF:
- Structure:
- Chemical Name:Dasatinib impurity 29
- CAS:1417651-54-7
- MF:C21H16Cl3N7OS
- Structure:
- Chemical Name:Erlotinib Impurity 58
- CAS:2246399-22-2
- MF:C10H12N2O3
- Chemical Name:Lamivudine Impurity 4
- CAS:
- MF:
- Chemical Name:Olaparib Impurity 37
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 3
- CAS:
- MF:
- Structure:
- Chemical Name:Phenylephrine Impurity 2
- CAS:
- MF:C9H13NO2
- Structure:
- Chemical Name:Pitavastatin Impurity 23
- CAS:1467166-39-7
- MF:C28H28FNO4
- Chemical Name:Pregabalin Impurity 24
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 11
- CAS:
- MF: