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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:
- 2,2'-[4-(2-Methylpropoxy)-1,3-phenylene]bis[4-Methyl-5-thiazolecarboxylic Acid 5,5'-DiMethyl Ester
- CAS:
- 1330632-47-7
- MF:
- C22H24N2O5S2
- Structure:
- Chemical Name:
- 2-(DiethylaMino)-N-(2,4-diMethylphenyl)acetaMide Hydrochloride
- CAS:
- 17289-54-2
- MF:
- C14H23ClN2O
- Structure:
- Chemical Name:
- 3-(5-Methyl-1H-iMidazol-1-yl)-5-(trifluoroMethyl)benzenaMine
- CAS:
- 641571-16-6
- MF:
- C11H10F3N3
- Structure:
- Chemical Name:
- 4-[[3-(4-Methylphenyl)-3-oxo-1-(trifluoroMethyl)propylidene]aMino]benzenesulfonaMide
- CAS:
- 1061214-09-2
- MF:
- C17H15F3N2O3S
- Structure:
- Chemical Name:
- 5-(Ethoxycarbonyl)-2-(hydroxyMethyl-6-Methyl-4-(3-nitrophenyl)nicotinic Acid
- CAS:
- 89267-43-6
- MF:
- C17H16N2O7
- Chemical Name:
- 9-L-β-Aspartic acid-daptoMycin
- CAS:
- 123180-72-3
- MF:
- C72H101N17O26
- Structure:
- Chemical Name:
- Chlorhexidine Digluconate IMpurity K
- CAS:
- 1381962-77-1
- MF:
- C22H29Cl2N9O
- Structure:
- Chemical Name:
- Cyclopropyl 3-Fluorobenzyl Ketone
- CAS:
- 952722-64-4
- MF:
- C11H11FO
- Structure:
- Chemical Name:
- Linear DaptoMycin
- CAS:
- 883991-21-7
- MF:
- C72H103N17O27
- Structure:
- Chemical Name:
- N,N-DiMethylaMidino) Urea
- CAS:
- 98026-16-5
- MF:
- C4H10N4O
- Structure:
- Chemical Name:
- rac Dehydro-O-desMethyl Venlafaxine
- CAS:
- 1346600-38-1
- MF:
- C16H23NO
- Structure:
- Chemical Name:
- 3-HYDROXY DESLORATADINE HCL
- CAS:
- 119410-08-1
- MF:
- C19H19ClN2O
- Structure:
- Chemical Name:
- 2-Fluoro-α-(2-methyl-1-oxopropyl)-γ-oxo-N,β-diphenyl-benzenebutanamide
- CAS:
- 1797905-42-0
- MF:
- C26H24FNO3
- Structure:
- Chemical Name:
- Atorvastatin Lactam Lactone
- CAS:
- 1795791-15-9
- MF:
- C33H31FN2O5
- Structure:
- Chemical Name:
- Vinorelbine N'b-Oxide Sulfate Salt
- CAS:
- 74075-34-6
- MF:
- C45H54N4O9
- Structure:
- Chemical Name:
- Linagliptin iMpurity G
- CAS:
- 668270-11-9
- MF:
- C25H28N8O2
- Chemical Name:
- Tadalafil EP IMpurity F
- Structure:
- Chemical Name:
- (2R,3R,4R,5S)-5-(4-benzaMido-2-oxopyriMidin-1(2H)-yl)-2-((benzoyloxy)Methyl)-4-fluoro-4-Methyltetrahydrofuran-3-yl benzoate
- CAS:
- 874638-94-5
- MF:
- C31H26FN3O7
- Chemical Name:
- Meropenem Impurity MAP-B
- Chemical Name:
- (S,E)-N-(4-((3-chloro-4-fluorophenyl)amino)-7-((tetrahydrofuran-3-yl)oxy)quinazolin-6-yl)-4-hydroxybut-2-enamide
- Structure:
- Chemical Name:
- 5-Methoxy-2-Hydroxy Benzimidazole
- CAS:
- 208-75-3
- MF:
- C13H9N
- Structure:
- Chemical Name:
- SODIUM CAMPTOTHECIN
- CAS:
- 25387-67-1
- MF:
- C20H17N2NaO5
- Structure:
- Chemical Name:
- (5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)-L-cysteine
- CAS:
- 2238849-52-8
- MF:
- C13H15N3O3S
- Structure:
- Chemical Name:
- 8-hydroxyclomipramine
- CAS:
- 83385-97-1
- MF:
- C19H23ClN2O
- Structure:
- Chemical Name:
- Ro 15-3505
- CAS:
- 78756-33-9
- MF:
- C15H14ClN3O3
- Structure:
- Chemical Name:
- L 683519
- CAS:
- 132172-14-6
- MF:
- C43H67NO12
- Structure:
- Chemical Name:
- benzylpenicilloic acid
- CAS:
- 13057-98-2
- MF:
- C16H20N2O5S
- Structure:
- Chemical Name:
- erythralosamine
- CAS:
- 546-57-6
- MF:
- C29H49NO8
- Structure:
- Chemical Name:
- 6-methylprednisone
- CAS:
- 91523-05-6
- MF:
- C22H28O5
- Structure:
- Chemical Name:
- HYDROXYMETHYL CELECOXIB
- CAS:
- 170571-00-3
- MF:
- C17H14F3N3O3S
- Structure:
- Chemical Name:
- 2-(2-cyanophenyl)benzonitrile
- CAS:
- 4341-02-0
- MF:
- C14H8N2
- Structure:
- Chemical Name:
- N-(2,4-dimethylphenyl)piperidine-2-carboxamide
- CAS:
- 99552-32-6
- MF:
- C14H20N2O
- Structure:
- Chemical Name:
- pyrrolidinyl)-, (2β,3α,5α,16β,17β)-
- CAS:
- 144209-33-6
- MF:
- C27H46N2O2
- Structure:
- Chemical Name:
- (4S,6S)-6-[2-[2-(4-Fluorophenyl)-5-(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1H-pyrrol-1-yl]ethyl]-2,2-dimethyl-1,3-dioxane-4-acetic Acid 1,1-Dimethylethyl Ester
- CAS:
- 472967-95-6
- MF:
- C40H47FN2O5
- Structure:
- Chemical Name:
- 6a-Methylprednisone 21-Acetate
- CAS:
- 115321-98-7
- MF:
- C24H30O6
- Structure:
- Chemical Name:
- Aztreonam Amide
- CAS:
- 1219444-93-5
- MF:
- C13H20N6O8S2
- Structure:
- Chemical Name:
- N'-[(2Z)-Piperazin-2-ylidene]trifluoroacetohydrazide
- CAS:
- 763105-70-0
- MF:
- C6H9F3N4O
- Structure:
- Chemical Name:
- HERBACETIN-3,8-DIGLUCOPYRANOSIDE
- CAS:
- 99224-12-1
- MF:
- C27H30O17
- Structure:
- Chemical Name:
- ACETAMINOPURINE
- CAS:
- 6034-68-0
- MF:
- C7H7N5O
- Structure:
- Chemical Name:
- 2-(4-HYDROXY-PHENYL)-4-METHYL-THIAZOLE-5-CARBOXYLIC ACID
- CAS:
- 886501-78-6
- MF:
- C11H9NO3S
- Structure:
- Chemical Name:
- CefuroxiMe sodiuM iMpurity B
- MF:
- C16H16N4NaO8S
- Structure:
- Chemical Name:
- Fasudil N-hydroxy iMpurity
- CAS:
- 1350827-92-7
- MF:
- C14H17N3O3S
- Structure:
- Chemical Name:
- TaMsulosin IMpurity A
- MF:
- C20H28N2O5S
- Structure:
- Chemical Name:
- 1-((2'-cyanobiphenyl-4-yl)Methyl)-2-ethoxy-1H-benziMidazole-7-carboxylic acid
- CAS:
- 632322-61-3
- MF:
- C24H19N3O3
- Structure:
- Chemical Name:
- 4-[4-(diMethylaMino)-1-(4-fluorophenyl)-1-buten-1-yl]-3-(hydroxyMethyl)-benzonitrile (CitalopraM Olefinic IMpurity)
- CAS:
- 920282-75-3
- MF:
- C20H21FN2O
- Structure:
- Chemical Name:
- 2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethyl Acetate
- CAS:
- 844639-07-2
- MF:
- C23H27N3O3S
- Structure:
- Chemical Name:
- 4-O-DesMethyl 4-O-Ethyl TriMethopriM
- CAS:
- 78025-68-0
- MF:
- C15H20N4O3
- Structure:
- Chemical Name:
- 1-[[(2E)-3-Phenyl-2-propen-1-yl]oxy]naphthalene
- CAS:
- 1091626-77-5
- MF:
- C19H16O
- Structure:
- Chemical Name:
- α-[[[2-(4-Methoxyphenyl)-1-Methylethyl](phenylMethyl)aMino]Methyl]-3-nitro-4-(phenylMethoxy)benzeneMethanol
- CAS:
- 43229-67-0
- MF:
- C32H34N2O5
- Structure:
- Chemical Name:
- Indacaterol IMrity
- CAS:
- 1235445-80-3
- MF:
- C24H28N2O3
- Chemical Name:
- Topiroxostat IMpurity
- Structure:
- Chemical Name:
- Flurbiprofen Impurity 17
- CAS:
- 1206101-29-2
- MF:
- C24H16F2
- Structure:
- Chemical Name:
- Azilsartan Impurity
- CAS:
- 1586011-04-2
- MF:
- C26H25N3O4
- Structure:
- Chemical Name:
- 1,2-Bis(piperazin-1-yl)benzene
- CAS:
- 1446750-99-7
- MF:
- C14H22N4
- Chemical Name:
- Abiolone Impurity 24
- Chemical Name:
- Deerasirox Impurity II
- Chemical Name:
- Brivaracetam Impurity 49
- Chemical Name:
- Paroxetine EP Impurity J HCl
- Chemical Name:
- Brivaracetam Impurity 99
- Chemical Name:
- Bendamustine Impurity 39
- Chemical Name:
- AvatrombopagImpurity42
- Chemical Name:
- (R)-4-(((R)-1-carboxy-2-((3-hydroxypropyl)thio)ethyl)amino)-3-hydroxy-4-oxobutanoic acid
- Structure:
- Chemical Name:
- ETHYL (1R,5R,6R)-5-(1-ETHYLPROPOXY)-7-AZABICYCLO[4.1.0]HEPT-3-ENE-3-CARBOXYLATE
- CAS:
- 204255-02-7
- MF:
- C14H23NO3
- Structure:
- Chemical Name:
- (1,1-DIOXIDO-3-OXO-1,2-BENZISOTHIAZOL-2(3H)-YL)ACETIC ACID
- CAS:
- 52188-11-1
- MF:
- C9H7NO5S
- Structure:
- Chemical Name:
- N-(3-AMINOPROPYL)DIETHANOLAMINE
- CAS:
- 4985-85-7
- MF:
- C7H18N2O2
- Structure:
- Chemical Name:
- 2-Methylpropaneboronic acid (1S,2S,3R,5S)-(+)-2,3-pinanediol ester
- CAS:
- 84110-34-9
- MF:
- C14H25BO2
- Structure:
- Chemical Name:
- Mirtazapine N-Oxide
- CAS:
- 155172-12-6
- MF:
- C17H19N3O
- Structure:
- Chemical Name:
- 3-Oxo Citalopram
- CAS:
- 372941-54-3
- MF:
- C20H19FN2O2
- Structure:
- Chemical Name:
- Quetiapine N-Oxide
- CAS:
- 1076199-40-0
- MF:
- C21H25N3O3S
- Structure:
- Chemical Name:
- Celebrex Carboxylic Acid Methyl Ester
- CAS:
- 1189893-75-1
- MF:
- C18H14F3N3O4S
- Structure:
- Chemical Name:
- (S)-BoroLeu-(-)-Pinanediol-hydrochloride
- CAS:
- 945606-99-5
- MF:
- C15H29BClNO2
- Structure:
- Chemical Name:
- BROMOSULBACTAM
- CAS:
- 75527-87-6
- MF:
- C8H10BrNO5S
- Structure:
- Chemical Name:
- (S)-PYRROLIDINE-2-CARBONITRILE
- CAS:
- 204387-53-1
- MF:
- C5H8N2
- Structure:
- Chemical Name:
- 1-(CHLOROACETYL)-L-PROLINE METHYL ESTER
- CAS:
- 38074-72-5
- MF:
- C8H12ClNO3
- Structure:
- Chemical Name:
- 1-(4-PIPERIDINYLCARBONYL)-4-PIPERIDINECARBOXYLIC ACID
- CAS:
- 96053-48-4
- MF:
- C12H20N2O3
- Structure:
- Chemical Name:
- 1-(3-PYRIDYL)ETHAN-1-ONE OXIME
- CAS:
- 5973-83-1
- MF:
- C7H8N2O
- Structure:
- Chemical Name:
- 1-(3,4,5-Trimethoxy-benzyl)-piperazinedihydrochloride
- CAS:
- 107049-57-0
- MF:
- C14H24Cl2N2O3
- Structure:
- Chemical Name:
- Sitagliptin N-Sulfate
- CAS:
- 940002-57-3
- MF:
- C16H15F6N5O4S
- Structure:
- Chemical Name:
- 1-Oxo Mirtazapine (Mirtazapine Impurity C)
- CAS:
- 191546-96-0
- MF:
- C17H17N3O
- Structure:
- Chemical Name:
- N-(2,6-Dimethylphenyl)-2-(ethylmethylamino)acetamide Hydrochloride_x000b_(Lidocaine Impurity E)
- CAS:
- 50295-20-0
- MF:
- C13H21ClN2O
- Structure:
- Chemical Name:
- ent-Cinacalcet Hydrochloride
- CAS:
- 694495-47-1
- MF:
- C22H22F3N
- Structure:
- Chemical Name:
- Nsc529487
- CAS:
- 3310-47-2
- MF:
- C9H13N3O6
- Structure:
- Chemical Name:
- Oxathiolan 5fu-.B.
- CAS:
- 145986-11-4
- MF:
- C8H9FN2O4S
- Structure:
- Chemical Name:
- Decarboxy Enrofloxacin
- CAS:
- 131775-99-0
- MF:
- C18H22FN3O
- Structure:
- Chemical Name:
- Desethanol Dipyridamole
- CAS:
- 1176886-12-6
- MF:
- C22H36N8O3
- Structure:
- Chemical Name:
- 2’’-Desethyl-2’’-vinyl Simvastatin
- CAS:
- 1449248-72-9
- MF:
- C25H36O5
- Structure:
- Chemical Name:
- 1,2-Dihydro Dexamethasone
- CAS:
- 426-17-5
- MF:
- C22H31FO5
- Structure:
- Chemical Name:
- Lamotrigine N2-Oxide
- CAS:
- 136565-76-9
- MF:
- C9H7Cl2N5O
- Structure:
- Chemical Name:
- 4-[3-(Methylamino)-1-(2-thienyl)propyl]-
- CAS:
- 949096-01-9
- MF:
- C18H20BrNOS
- Structure:
- Chemical Name:
- N-Isopropyl Carvedilol
- CAS:
- 1246819-01-1
- MF:
- C27H32N2O4
- Structure:
- Chemical Name:
- 5-Oxo Atorvastatin
- CAS:
- 1391052-82-6
- MF:
- C33H33FN2O5
- Structure:
- Chemical Name:
- 1-Methyl-12-thioxopyrido[1,2,3,4]imidazole-[1,2-a]benzimidazole-2(12H)-one
- CAS:
- 1246819-06-6
- MF:
- C14H9N3OS
- Structure:
- Chemical Name:
- Quetiapine Hydroxy Impurity
- CAS:
- 329216-67-3
- MF:
- C19H21N3OS
- Structure:
- Chemical Name:
- 7-[4-(2-Piperidinyl)ethoxy]benzoyl Raloxifene (Raloxifene Impurity)
- CAS:
- 1159977-58-8
- MF:
- C42H44N2O6S
- Structure:
- Chemical Name:
- rac N-Demethyl Promethazine Hydrochloride
- CAS:
- 60113-77-1
- MF:
- C16H19ClN2S
- Structure:
- Chemical Name:
- Lincomycin B Hydrochloride
- CAS:
- 11021-35-5
- MF:
- C17H33ClN2O6S
- Chemical Name:
- Flucloxacillin impurity C
- Structure:
- Chemical Name:
- 1-[2-amino-1-(4-hydroxyphenyl)ethyl]cyclohexanol
- CAS:
- 149289-29-2
- MF:
- C14H21NO2
- Structure:
- Chemical Name:
- (2E)-3-(Dimethylamino)-1-(3-pyridyl)prop-2-en-1-one
- CAS:
- 123367-26-0
- MF:
- C10H12N2O
- Structure:
- Chemical Name:
- 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone
- CAS:
- 173140-90-4
- MF:
- C18H15NO3