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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:Unii-o0p4I5851i
- CAS:139563-29-4
- MF:C28H37ClN4O2S
- Structure:
- Chemical Name:Amoxicillin Diketopiperazine (Mixture of Diastereomers)
- CAS:94659-47-9
- MF:C16H19N3O5S
- Structure:
- Chemical Name:Amoxicillin Diketopiperazine (Mixture of Diastereomers)
- CAS:94659-47-9
- MF:C16H19N3O5S
- Structure:
- Chemical Name:Atorvastatin Oxirane Impurity
- CAS:1246818-88-1
- MF:C26H24FNO3
- Structure:
- Chemical Name:Dehydro Lovastatin
- CAS:109273-98-5
- MF:C24H34O4
- Structure:
- Chemical Name:(3S)-3-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-4,5-dihydro-2-benzoxepin-1(3H)-one
- CAS:1100617-38-6
- MF:C27H20ClNO2
- Structure:
- Chemical Name:O-Desethyl N-Trityl Candesartan Cilexetil
- CAS:934495-65-5
- MF:C50H44N6O6
- Structure:
- Chemical Name:PLANTAGININ
- CAS:26046-94-6
- MF:C21H20O11
- Structure:
- Chemical Name:2-(2-Chloroethyl)thiophene
- CAS:19995-38-1
- MF:C6H7ClS
- Structure:
- Chemical Name:2'',3'',5''-Triacetyl -azacytidine
- CAS:10302-78-0
- MF:C14H18N4O8
- Structure:
- Chemical Name:N-Methyl Pantoprazole, mixture of 1 and 3 isomers
- CAS:624742-53-6
- MF:C17H17F2N3O4S
- Structure:
- Chemical Name:1H-Indole-2-carboxamide, 1-[(1S,2S)-1-[(Z)-amino(hydroxyimino)methyl]-2-methylcyclopropyl]-N-methyl-N-phenyl-5-[(4S)-tetrahydro-2,2-dimethyl-2H-pyran-4-yl]-
- CAS:3047556-95-3
- MF:C28H34N4O3
- Structure:
- Chemical Name:N-DESMETHYLGALANTHAMINE
- CAS:41303-74-6
- MF:C16H19NO3
- Structure:
- Chemical Name:2-[6-(2-hydroxy-2-phenyl-ethyl)-1-methyl-2-piperidyl]-1-phenyl-ethanol
- CAS:552-72-7
- MF:C22H29NO2
- Structure:
- Chemical Name:4-Amino-1-3,5-di-O-benzoyl-2-deoxy-2,2-difluoro-a-D-erythro-pentofuranosyl)-2(1H)-pyrimidinone
- CAS:134790-40-2
- MF:C23H19F2N3O6
- Structure:
- Chemical Name:Granisetron Impurity C
- CAS:160177-67-3
- MF:C17H22N4O
- Structure:
- Chemical Name:Lisinopril R,S,S-Diketopiperazine
- CAS:219677-82-4
- MF:C21H29N3O4
- Structure:
- Chemical Name:4-Chloromethyl-N-[4-methyl-3-[[4-(pyridin-3-yl)pyrimidin-2-yl]amino]phenyl]benzamide
- CAS:404844-11-7
- MF:C24H20ClN5O
- Structure:
- Chemical Name:6-Mercaptopurine disulfide
- CAS:49808-20-0
- MF:C10H6N8S2
- Structure:
- Chemical Name:Dexivacaine
- CAS:24358-84-7
- MF:C15H22N2O
- Structure:
- Chemical Name:(S)-4-(4-Nitrobenzyl)-2-oxazolidinone
- CAS:139264-55-4
- MF:C10H10N2O4
- Structure:
- Chemical Name:6-(Benzyloxy)-9-((1S,3S)-4-(benzyloxy)-3-((benzyloxy)methyl)-2-methylenecyclopentyl)-N-((4-methoxyphenyl)diphenylmethyl)-9H-purin-2-amine
- CAS:142217-80-9
- MF:C53H49N5O4
- Structure:
- Chemical Name:2-(4-Hydroxymethylphenyl)phenylsulfonamide
- CAS:158144-55-9
- MF:C15H14O3
- Structure:
- Chemical Name:4-[2-(CYCLOPROPYLMETHOXY)ETHYL]PHENOL
- CAS:63659-16-5
- MF:C12H16O2
- Structure:
- Chemical Name:p-Methylcinnamic acid ethyl ester
- CAS:24393-49-5
- MF:C12H14O2
- Structure:
- Chemical Name:3-[(2-Hydroxyethyl)amino]propiononitrile
- CAS:33759-44-3
- MF:C5H10N2O
- Structure:
- Chemical Name:2-Amino-5-bromobenzaldehyde
- CAS:29124-57-0
- MF:C7H6BrNO
- Structure:
- Chemical Name:(R)-(+)-3-(N-METHYLAMINO)-1-(2-THIENYL)-1-PROPANOL
- CAS:116539-57-2
- MF:C8H13NOS
- Structure:
- Chemical Name:N-(Ethylamino) Fluvoxamine
- CAS:1217262-11-7
- MF:C17H26F3N3O2
- Structure:
- Chemical Name:Iso Ribavirin (Ribavirin Impurity G)
- CAS:39030-43-8
- MF:C8H12N4O5
- Structure:
- Chemical Name:(R)-(+)-Tolvaptan
- CAS:331947-66-1
- MF:C26H25ClN2O3
- Structure:
- Chemical Name:(Z)-Cefdinir
- CAS:178601-88-2
- MF:C14H13N5O5S2
- Chemical Name:Flucloxacillin impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:4-(4-Piperidyl)-1-butanol
- CAS:57614-92-3
- MF:C9H19NO
- Structure:
- Chemical Name:Pitavastatin Methyl Ester
- CAS:849811-78-5
- MF:C26H26FNO4
- Structure:
- Chemical Name:1-Cyclopropyl-1,4-dihydro-6,8-dimethoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid
- CAS:1029364-73-5
- MF:C22H27N3O5
- Structure:
- Chemical Name:rac N,N-DidesMethyl-N-(4-hydroxyphenethyl)-O-desMethyl Venlafaxine
- CAS:1346601-21-5
- MF:C22H29NO3
- Structure:
- Chemical Name:rac-11-Deoxy-8(12)-dehydro Misoprostol
- CAS:1331639-92-9
- MF:C22H36O4
- Structure:
- Chemical Name:5-Nitro-1H-iMidazole-1-ethanol
- CAS:5006-68-8
- MF:C5H7N3O3
- Structure:
- Chemical Name:Hydroxy Adapalene
- CAS:1346599-76-5
- MF:C28H28O4
- Chemical Name:Iohexol related Compound I
- CAS:
- MF:
- Structure:
- Chemical Name:2,2'-Methylene Bis[Ranitidine]
- CAS:207592-21-0
- MF:C27H44N8O6S2
- Structure:
- Chemical Name:ChloroMethyl Propyl Carbonate
- CAS:35273-90-6
- MF:C5H9ClO3
- Structure:
- Chemical Name:Bisacodyl Related Compound B (20 mg) (2,4'-(Pyridin-2-ylmethylene)diphenol)
- CAS:16985-05-0
- MF:C18H15NO2
- Structure:
- Chemical Name:Doxepin Related Compound C (25 mg) ((E-3-(dibenzo[b,e]oxepin-11(6H)-ylidene)-N-methylpropan-1-amine hydrochloride)
- CAS:4504-96-5
- MF:C18H20ClNO
- Structure:
- Chemical Name:Imiquimod Related Compound B (25 mg) (1-Isobutyl-1H-imidazo[4,5-c]quinoline 5-oxide)
- CAS:99010-63-6
- MF:C14H15N3O
- Structure:
- Chemical Name:Ioversol Related Compound B (50 mg) (N,N'-bis(2,3-dihydroxypropyl)-5-[(N-(2-hydroxyethyl)-carbamoyl)methoxy]-2,4,6-triiodoisophthalamide)
- CAS:104517-96-6
- MF:C18H24I3N3O9
- Structure:
- Chemical Name:Edoxaban Impurity 12 (1R,2R,4S)
- CAS:500572-10-1
- MF:C24H30ClN7O4S
- Structure:
- Chemical Name:paroxetine Mesylate
- CAS:217797-14-3
- MF:C20H24FNO6S
- Structure:
- Chemical Name:2-(2-Ethoxyphenoxy)ethyl Methanesulfonate
- CAS:169506-15-4
- MF:C11H16O5S
- Structure:
- Chemical Name:1-(5-(benzyloxy)-2-hydroxy-3-nitrophenyl)ethanone
- CAS:861841-94-3
- MF:C15H13NO5
- Chemical Name:acetylated penicilloic acids of piperacillin
- CAS:
- MF:
- Structure:
- Chemical Name:Atorvastatin Dehydro Lactone
- CAS:442851-50-5
- MF:C33H31FN2O3
- Chemical Name:penicilloic acids of piperacillin
- CAS:
- MF:
- Chemical Name:Tafluprost Impurity 17
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 160 （Sodium salt)
- CAS:
- MF:
- Structure:
- Chemical Name:Rosuvastatin Impurity 143
- CAS:2964549-48-0
- MF:C32H34F2N6O7S2
- Chemical Name:Rosuvastatin Impurity 131
- CAS:
- MF:
- Chemical Name:Rosuvastatin Impurity 125
- CAS:
- MF:
- Chemical Name:Metabotropic glutamate receptor 5 (GRM5) Antibody
- CAS:
- MF:
- Chemical Name:Terlipressin Impurity 2 (des-Gly1,Gly2)
- CAS:
- MF:
- Structure:
- Chemical Name:BENZHYDRYL 6,6-DIHYDROPENICILLIC ACID 1-OXIDE[TAZOBACTAM INTERMEDIATE]
- CAS:87579-78-0
- MF:C21H21NO4S
- Chemical Name:Ertapenem Impurity C(USP)
- CAS:
- MF:
- Chemical Name:Ertapenem Impurity 22
- CAS:
- MF:
- Chemical Name:(1-carboxy-1-(3-methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)ethyl)-L-cysteine
- CAS:
- MF:
- Structure:
- Chemical Name:Pyrazinecarboxylic acid, 5-methyl-, 1-oxide (9CI)
- CAS:98502-96-6
- MF:C6H6N2O3
- Structure:
- Chemical Name:1,4-Butanediaminium, N1,N4-diethyl-N1,N1,N4,N4-tetrakis(1-methylethyl)-, bromide (1:2)
- CAS:1621467-18-2
- MF:C20H46BrN2+
- Structure:
- Chemical Name:1,6,10,14-Hexadecatetraen-3-ol, 3,7,11,15-tetramethyl-, (6Z,10E)-
- CAS:3790-76-9
- MF:C20H34O
- Chemical Name:Bisoprolol Impurity 51
- CAS:
- MF:
- Structure:
- Chemical Name:2-Deoxy-2,2-difluoro-D-ribofuranose-3,5-dibenzoate-1-methanesulfonate
- CAS:134877-42-2
- MF:C20H18F2O8S
- Chemical Name:Pitavastatin Impurity 105
- CAS:
- MF:
- Chemical Name:Nirmatrelvir Impurity 11
- CAS:
- MF:
- Chemical Name:Bumetanide Impurity 21
- CAS:
- MF:
- Chemical Name:Amoxicillin related impurities K
- CAS:
- MF:
- Chemical Name:Amoxicillin related impurities K
- CAS:
- MF:
- Structure:
- Chemical Name:4'-(Hydroxymethyl)-[1,1'-Biphenyl]-2-Carboxylic Acid
- CAS:158144-54-8
- MF:C14H12O3
- Chemical Name:Brivaracetam Impurity 118
- CAS:
- MF:
- Structure:
- Chemical Name:1-(4-((2-(4-hydroxypiperidin-1-yl)ethyl)(methyl)carbamoyl)benzyl)piperidine-4-carboxylic acid
- CAS:2975124-11-7
- MF:C22H34N4O3
- Chemical Name:Empagliflozin Impurity 108
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 28
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 23
- CAS:
- MF:
- Structure:
- Chemical Name:5-ForMyl-8-hydroxycarbostyril
- CAS:68304-21-2
- MF:C10H7NO3
- Chemical Name:Capecitabine Related Compound A
- CAS:
- MF:
- Structure:
- Chemical Name:1-Pyrrolidineaceticacid,2-(aminocarbonyl)-,(2S)-(9CI)
- CAS:277751-02-7
- MF:C7H12N2O3
- Structure:
- Chemical Name:2-Pyrrolidinecarbonitrile,1-acetyl-,(2S)-(9CI)
- CAS:700376-84-7
- MF:C7H10N2O
- Structure:
- Chemical Name:1-Azetidinesulfonamide(9CI)
- CAS:654073-32-2
- MF:C3H8N2O2S
- Structure:
- Chemical Name:1-Piperazinecarboxylicacid,4-methyl-,ethylester(6CI,9CI)
- CAS:59325-11-0
- MF:C8H16N2O2
- Structure:
- Chemical Name:(1S,4R)-4-Amino-2-cyclopenten-1-carboxylic Acid Hydrochloride
- CAS:134234-04-1
- MF:C6H9NO2
- Structure:
- Chemical Name:erythronolide B
- CAS:3225-82-9
- MF:C21H38O7
- Structure:
- Chemical Name:desmethylmianserin
- CAS:71936-92-0
- MF:C17H18N2
- Structure:
- Chemical Name:3-demethylthiocolchicine
- CAS:87424-25-7
- MF:C21H23NO5S
- Structure:
- Chemical Name:2,6-di-tert-butyl-4-methylene-2,5-cyclohexadienone
- CAS:2607-52-5
- MF:C15H22O
- Chemical Name:Finerenone-d5
- CAS:
- MF:
- Structure:
- Chemical Name:2-acetyl-2-decarboxamidooxytetracycline
- CAS:6542-44-5
- MF:C23H25NO8
- Structure:
- Chemical Name:7,8-dehydro-9,10-desacetyldoxorubicinone
- CAS:64845-67-6
- MF:C19H12O6
- Structure:
- Chemical Name:3S,5R isoMer, or (3S,5R)-7-[3-(phenylcarbaMoyl)-5-(4-fluorophenyl)-2-isopropyl-4-phenyl-1H-pyrrol-1-yl]-3,5-dihydroxyheptanoic acid calciuM salt
- CAS:887196-25-0
- MF:C33H34CaFN2O5+
- Structure:
- Chemical Name:3'-O-(5'-Deoxy-α-D-ribofuranosyl) Capecitabine
- CAS:1262133-64-1
- MF:C20H30FN3O9
- Structure:
- Chemical Name:5-Chlorodescyano CitalopraM Oxalate
- CAS:64169-46-6
- MF:C21H23ClFNO5
- Structure:
- Chemical Name:Acyclovir N-Methyl-L-valinate Hydrochloride
- CAS:1346617-39-7
- MF:C14H23ClN6O4