ChemicalBook >
Product Catalog >
Analytical Chemistry >
Standard >
Pharmaceutical Impurity Reference Standards
Pharmaceutical Impurity Reference Standards
Click on the specific product, view the latest prices of the products, information, serving information
- Structure:
- Chemical Name:N-(2-HYDROXYETHYL)ISONICOTINAMIDE, 99
- CAS:6265-74-3
- MF:C8H10N2O2
- Structure:
- Chemical Name:BENAZEPRIL RELATED COMPOUND G (15 MG) ((3-(1 -ETHOXYCARBONYL-3-PHENYL-(1 S)-PROPYL)AMINO-2,3,4,5-TETRAHYDRO-2-OXO-1H-1-(3S)-BENZAZE-PINE)-1-ACETIC ACID, ETHYL ESTER)
- CAS:103129-58-4
- MF:C26H32N2O5
- Structure:
- Chemical Name:2-(2-Fluoro-4-iodo-aniline)-4-hydroxy-1, 5-dimethyl-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid cyclopropylamide
- CAS:3018911-27-5
- MF:C17H17FIN3O3
- Structure:
- Chemical Name:Pramipexole EP Impurity E
- CAS:106006-84-2
- MF:C10H15N3OS
- Structure:
- Chemical Name:3-Morpholinone, 4-phenyl-
- CAS:29518-11-4
- MF:C10H11NO2
- Structure:
- Chemical Name:H 128/80
- CAS:29122-74-5
- MF:C13H19NO3
- Structure:
- Chemical Name:4’-Hydroxy Atomoxetine -D-Glucuronide
- CAS:540729-08-6
- MF:C23H29NO8
- Structure:
- Chemical Name:Decarboxy Ciprofloxacin
- CAS:105394-83-0
- MF:C16H18FN3O
- Structure:
- Chemical Name:Zolpidem 6-Carboxylic Acid
- CAS:109461-15-6
- MF:C19H19N3O3
- Structure:
- Chemical Name:Myricetin 3-β-D-glucopyranoside
- CAS:19833-12-6
- MF:C21H20O13
- Chemical Name:4-((2S,4S)-4-butoxy-1-((5-methoxy-7-methyl-1H-indol-4-yl)methyl)piperidin-2-yl)benzoic acid
- CAS:
- MF:
- Structure:
- Chemical Name:2,4,5-Trifluoro-3-methoxybenzoyl chloride
- CAS:112811-66-2
- MF:C8H4ClF3O2
- Structure:
- Chemical Name:1-(Dimethoxymethyl)-2-methoxybenzene
- CAS:58378-33-9
- MF:C10H14O3
- Structure:
- Chemical Name:N-(2-BENZOYL-4-CHLOROPHENYL)FORMAMIDE
- CAS:10352-28-0
- MF:C14H10ClNO2
- Structure:
- Chemical Name:Benzylpenicillin EP Impurity
- CAS:5985-13-7
- MF:C16H19N2NaO5S
- Structure:
- Chemical Name:4,4,4-TRIFLUORO-1-(3-METHYLPHENYL)-1,3-BUTANEDIONE
- CAS:53764-99-1
- MF:C11H9F3O2
- Structure:
- Chemical Name:DU 6856
- CAS:127254-11-9
- MF:C19H18ClF2N3O3
- Structure:
- Chemical Name:2-Propanol, 1,1'-[methylenebis(4,1-phenyleneoxy)]bis[3-[(1-methylethyl)amino]-
- CAS:1225195-70-9
- MF:C25H38N2O4
- Structure:
- Chemical Name:Telmisartan impurities1039
- CAS:2031272-32-7
- MF:C47H40N4O4
- Structure:
- Chemical Name:(4R,5S,6S)-3-[[(3S,5S)-1-[(4-Aminophenyl)methyl]-5-[[(3-carboxyphenyl)amino]carbonyl]-3-pyrrolidinyl]thio]-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-1-Azabicyclo[3.2.0]hept-2-ene-2-carboxylic Acid Sodium Salt
- CAS:866186-66-5
- MF:C29H33N4NaO7S
- Structure:
- Chemical Name:(R)-cis-5ξ-Methyl Atracurium Dibesylate
- CAS:1193104-82-3
- MF:C60H79N2O15S+
- Chemical Name:2-(((Z)-(1-(2-Aminothiazol-4-yl)-2-(((2R,3R)-2-methyl-4-oxo-1-sulfoazetidin-3-yl)amino)-2-oxoethylidene)amino)oxy)-2-methylpropanoic Acid
- CAS:
- MF:C13H17N5O8S2
- Structure:
- Chemical Name:7-[4-[2-[[[4-(3-Carboxy-6-fluoro-1-methyl-4-oxo-1H,4H-[1,3]thiazeto[3,2-a]quinolin-7-yl)-1-piperazinyl]carbonyl]oxy]-3-oxobutyl]-1-piperazinyl]-6-fluoro-1-methyl-4-oxo-1H,4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid
- CAS:156834-58-1
- MF:C37H36F2N6O9S2
- Structure:
- Chemical Name:(6R,7S)-7-ACCA
- CAS:108260-07-7
- MF:C7H7ClN2O3S
- Structure:
- Chemical Name:Enrofloxacin Impurity 1
- CAS:1128234-60-5
- MF:C19H22ClN3O3
- Chemical Name:Peramivir Impurity 20
- CAS:
- MF:
- Structure:
- Chemical Name:Ambroxol Impurity 33
- CAS:199472-91-8
- MF:C13H20N2O
- Structure:
- Chemical Name:Bilastine Impurity 12
- CAS:1638785-18-8
- MF:C30H42N4O3
- Structure:
- Chemical Name:Tadalafil Impurity 66
- CAS:1598416-07-9
- MF:C21H18N2O5
- Chemical Name:Peramivir Impurity 36
- CAS:
- MF:
- Structure:
- Chemical Name:3-((3R,4R)-4-methyl-3-(methyl(7H-pyrrolo[2,3-d]pyrimidin-2-yl)amino)piperidin-1-yl)-3-oxopropanenitrile
- CAS:2374700-40-8
- MF:C16H20N6O
- Structure:
- Chemical Name:7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9-fluoro-2,3-dihydro-2-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-, (S)- (9CI)
- CAS:129815-82-3
- MF:C18H20FN3O4
- Structure:
- Chemical Name:Piperazine, 1-[2-[(4-methoxyphenyl)methyl]-4-methylphenyl]-
- CAS:769083-63-8
- MF:C19H24N2O
- Structure:
- Chemical Name:1,3-diisopropylurea
- CAS:4128-37-4
- MF:C7H16N2O
- Structure:
- Chemical Name:Acetic acid, 2-[(5-bromo-2-pyridinyl)amino]-2-oxo-, ethyl ester
- CAS:141354-54-3
- MF:C9H9BrN2O3
- Structure:
- Chemical Name:Desacetylvinblastine hydrazide
- CAS:55383-37-4
- MF:C43H56N6O7
- Structure:
- Chemical Name:4-hydroxypyrrolidin-2-one
- CAS:96820-00-7
- MF:C4H7NO2
- Structure:
- Chemical Name:glycopyrronium bromide
- CAS:475468-09-8
- MF:C19H28NO3.Br
- Structure:
- Chemical Name:Acetamide, N-[3-[3-cyclopropyl-5-[(2-fluoro-4-iodophenyl)imino]-3,4,5,6,7,8-hexahydro-8-hydroxy-6,8-dimethyl-2,4,7-trioxopyrido[4,3-d]pyrimidin-1(2H)-yl]phenyl]-
- CAS:1383430-03-2
- MF:C26H23FIN5O5
- Structure:
- Chemical Name:4'-hydroxyflurbiprofen
- CAS:52807-12-2
- MF:C15H13FO3
- Structure:
- Chemical Name:D-biotin-d-sulfoxide
- CAS:10406-89-0
- MF:C10H16N2O4S
- Structure:
- Chemical Name:3,4-dihydroxyphenylpyruvic acid
- CAS:4228-66-4
- MF:C9H8O5
- Structure:
- Chemical Name:delta(3)-cefotiam
- CAS:142182-63-6
- MF:C18H23N9O4S3
- Structure:
- Chemical Name:alpha-(chloromethyl)-2-hydroxymethyl-5-nitroimidazole-1-ethanol
- CAS:62580-79-4
- MF:C7H10ClN3O4
- Structure:
- Chemical Name:(3S,4S,5R)-3-(3,4-difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)tetrahydrofuran-2-yl acetate
- CAS:2875066-46-7
- MF:C16H17F5O4
- Structure:
- Chemical Name:(1R,2S)-2-[[(2,4-Dimethyl-5-pyrimidinyl)oxy]methyl]-2-(3-fluorophenyl)-N-2-pyridinylcyclopropanecarboxamide
- CAS:1369763-94-9
- MF:C22H21FN4O2
- Structure:
- Chemical Name:Nemonoxacin Impurity 5
- CAS:2770004-79-8
- MF:C24H29N3O8
- Structure:
- Chemical Name:4-hydroxypenicillin V
- CAS:20880-67-5
- MF:C16H18N2O6S
- Structure:
- Chemical Name:BENAZEPRILAT
- CAS:86541-78-8
- MF:C22H24N2O5
- Structure:
- Chemical Name:9-Methylene-9H-fluorene
- CAS:4425-82-5
- MF:C14H10
- Structure:
- Chemical Name:2-PIPERIDIN-4-YL-1H-BENZOIMIDAZOLE
- CAS:38385-95-4
- MF:C12H15N3
- Structure:
- Chemical Name:4-CHLORO-3,5-DIMETHYL 2-CHLORMETHYL PYRIDINE.HCL
- CAS:142885-96-9
- MF:C8H9Cl2N
- Structure:
- Chemical Name:9-DIHYDROESTRADIOL
- CAS:791-69-5
- MF:C18H22O2
- Structure:
- Chemical Name:4-CHLORO-7-(2-CHLORO-ETHOXY)-6-(2-METHOXY-ETHOXY)-QUINAZOLINE
- CAS:183322-20-5
- MF:C13H14Cl2N2O3
- Structure:
- Chemical Name:METHYL 2-(O-NITROBENZYLIDENE)-ACETOACETATE
- CAS:39562-27-1
- MF:C12H11NO5
- Chemical Name:Sugammadex sodium Impurity 48
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 47
- CAS:
- MF:
- Structure:
- Chemical Name:Tenofovir Impurity 95
- CAS:1884329-63-8
- MF:C8H10BrN5
- Structure:
- Chemical Name:Tenofovir Impurity 117
- CAS:1643116-22-6
- MF:C8H11N5O
- Chemical Name:Tafluprost Impurity E
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 36
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 69
- CAS:
- MF:
- Structure:
- Chemical Name:4-FLUORO-2-METHYLBENZAMIDE
- CAS:886501-45-7
- MF:C8H8FNO
- Structure:
- Chemical Name:Methyl 6-chloro-2-naphthoate
- CAS:5042-96-6
- MF:C12H9ClO2
- Chemical Name:Bumetanide Impurity 3
- CAS:
- MF:
- Chemical Name:Cefoxitin EP Impurity F (S-methoxy cefoxitin)
- CAS:
- MF:
- Chemical Name:((((3R,6S)-6-carbamoylpiperidin-3-yl)(ethoxycarbonyl)amino)oxy)sulfonic acid
- CAS:
- MF:
- Structure:
- Chemical Name:BOC-CHLORO
- CAS:2514949-81-4
- MF:C20H28N4O2
- Structure:
- Chemical Name:alpha-[4-[2-(dimethylamino)ethoxy]phenyl]-beta-ethyl-alpha-phenylphenethyl alcohol
- CAS:748-97-0
- MF:C26H31NO2
- Chemical Name:Brivaracetam Impurity 53
- CAS:
- MF:
- Structure:
- Chemical Name:ethyl hydrogen [R-(R*,R*)]-tartrate
- CAS:608-89-9
- MF:C6H10O6
- Structure:
- Chemical Name:ethyl 2,2,4-trichloro-3-oxobutyrate
- CAS:85153-67-9
- MF:C6H7Cl3O3
- Chemical Name:Neodigoxin
- CAS:55576-67-5
- MF:C41H64O14
- Structure:
- Chemical Name:(R,R)-Palonosetron N-Oxide
- CAS:
- MF:C19H24N2O2
- Structure:
- Chemical Name:[R(R*,R*]-2-amino-1-[p-(methylsulphonyl)phenyl]propane-1,3-diol
- CAS:51458-28-7
- MF:C10H15NO4S
- Structure:
- Chemical Name:16alpha,17,21-trihydroxypregna-1,4,9(11)-triene-3,20-dione 21-acetate
- CAS:77017-20-0
- MF:C23H28O6
- Structure:
- Chemical Name:Pyrimidine, 4-chloro-5-nitro-2-(propylthio)-
- CAS:2518331-26-3
- MF:C7H8ClN3O2S
- Chemical Name:Oseltamivir Impurity 110
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 108
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 102
- CAS:
- MF:
- Structure:
- Chemical Name:1H-Pyrazole-1-propanenitrile, 4-(6-amino-5-formyl-4-pyrimidinyl)-β-cyclopentyl-, (βR)-
- CAS:2606144-45-8
- MF:C16H18N6O
- Structure:
- Chemical Name:4-Piperidinecarboxylic acid, 1-(4-pyridinylcarbonyl)-, ethyl ester
- CAS:252263-38-0
- MF:C14H18N2O3
- Structure:
- Chemical Name:1,4-bis(4-nitrophenyl)piperazine
- CAS:16264-05-4
- MF:C16H16N4O4
- Structure:
- Chemical Name:di(2,4-xylyl) disulphide
- CAS:13616-83-6
- MF:C16H18S2
- Structure:
- Chemical Name:3-acetamidophthalic acid
- CAS:15371-06-9
- MF:C10H9NO5
- Structure:
- Chemical Name:Dexamethasone EP Impurity E
- CAS:13209-41-1
- MF:C22H28O4
- Chemical Name:Ibuprofen IMp. I (EP): 1-(2-Methylpropyl)-4-[(3RS)-3-[4-(2-Methylpropyl)phenyl]butyl]benzene
- CAS:
- MF:
- Structure:
- Chemical Name:3-Quinolinecarboxylic acid, 7-[(7S)-7-aMino-5-azaspiro[2.4]hept-5-yl]-8-chloro-6-fluoro-1-[(1R,2S)-2-fluorocyclopropyl]-1,4-dihydro-4-oxo-, hydrate
- CAS:163253-37-0
- MF:C19H20ClF2N3O4
- Structure:
- Chemical Name:3-oxo-1,3-dihydroisobenzofuran-1-ylphosphonic acid
- CAS:61260-15-9
- MF:C10H11O5P
- Structure:
- Chemical Name:1-(4,8-bis-(2,2,2-trifluoroacetyl)-11-{4-[4,8,11-tris-(2,2,2-trifluoroacetyl)-1,4,8,11-tetraazacyclotetradec-1-ylMethyl]-benzyl}-1,4,8,11-tetraazacyclotetradec-1-yl)-2,2,2-trifluoroethanone
- CAS:406939-93-3
- MF:C40H48F18N8O6
- Chemical Name:Anastrozole iMpurity A
- CAS:
- MF:
- Chemical Name:Anastrozole iMpurity A
- CAS:
- MF:
- Chemical Name:EMtricitabine iMpurity C
- CAS:
- MF:
- Chemical Name:RocuroniuMbroMide iMpurity F
- CAS:
- MF:
- Structure:
- Chemical Name:(Z)-2-ethoxy-3-((2'-(N'-hydroxycarbaMiMidoyl)biphenyl-4-yl)Methyl)-3H-benzo[d]iMidazole-4-carboxylic acid
- CAS:1397836-49-5
- MF:C24H22N4O4
- Structure:
- Chemical Name:Ribavirin IMpurity E
- CAS:58151-90-9
- MF:C15H16N4O6
- Structure:
- Chemical Name:TetrahydrogalantaMine
- CAS:664995-65-7
- MF:C17H19NO2