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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:
- Ethyl indole-3-carboxylate
- CAS:
- 776-41-0
- MF:
- C11H11NO2
- Structure:
- Chemical Name:
- Canrenone
- CAS:
- 976-71-6
- MF:
- C22H28O3
- Structure:
- Chemical Name:
- (+/-)-2-(6-METHOXY-2-NAPHTHYL)PROPIONIC ACID
- CAS:
- 23981-80-8
- MF:
- C14H14O3
- Structure:
- Chemical Name:
- 5-Amino-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide
- CAS:
- 76801-93-9
- MF:
- C14H18I3N3O6
- Structure:
- Chemical Name:
- 4-Amino-5-chloro-2,1,3-benzothiadiazole
- CAS:
- 30536-19-7
- MF:
- C6H4ClN3S
- Structure:
- Chemical Name:
- Cabergoline
- CAS:
- 81409-90-7
- MF:
- C26H37N5O2
- Structure:
- Chemical Name:
- 3-Methylflavone-8-carboxylic acid
- CAS:
- 3468-01-7
- MF:
- C17H12O4
- Structure:
- Chemical Name:
- Phenylephrine
- CAS:
- 59-42-7
- MF:
- C9H13NO2
- Structure:
- Chemical Name:
- (S)-(-)-4-Amino-2-hydroxybutyric acid
- CAS:
- 40371-51-5
- MF:
- C4H9NO3
- Chemical Name:
- Human serum albumin
- CAS:
- 70024-90-7
- MF:
- NULL
- Structure:
- Chemical Name:
- Paricalcitol
- CAS:
- 131918-61-1
- MF:
- C27H44O3
- Structure:
- Chemical Name:
- Distearyl thiodipropionate
- CAS:
- 693-36-7
- MF:
- C42H82O4S
- Structure:
- Chemical Name:
- 2-PIPERIDYLMETHYLAMINE
- CAS:
- 22990-77-8
- MF:
- C6H14N2
- Structure:
- Chemical Name:
- 5-Difluoromethoxy-2-{[(3,4-dimethoxy-2-pyridinyl)methyl]thio}-1H-benzimidazole
- CAS:
- 102625-64-9
- MF:
- C16H15F2N3O3S
- Structure:
- Chemical Name:
- 7-Ethyl tryptophol
- CAS:
- 41340-36-7
- MF:
- C12H15NO
- Structure:
- Chemical Name:
- 2-Chlorophenothiazine
- CAS:
- 92-39-7
- MF:
- C12H8ClNS
- Structure:
- Chemical Name:
- 3-(2-Chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylic acid
- CAS:
- 3919-74-2
- MF:
- C11H7ClFNO3
- Structure:
- Chemical Name:
- Benoxinate Hydrochloride
- CAS:
- 5987-82-6
- MF:
- C17H29ClN2O3
- Structure:
- Chemical Name:
- 5-Amino-4-imidazolecarboxamide
- CAS:
- 360-97-4
- MF:
- C4H6N4O
- Structure:
- Chemical Name:
- Lynestrenol
- CAS:
- 52-76-6
- MF:
- C20H28O
- Structure:
- Chemical Name:
- 3-Chloro-10,11-dihydro-5H-dibenzo[b,f]azepine
- CAS:
- 32943-25-2
- MF:
- C14H12ClN
- Structure:
- Chemical Name:
- 7-Hydroxy-5-methyl-1,3,4-triazaindolizine
- CAS:
- 2503-56-2
- MF:
- C6H6N4O
- Structure:
- Chemical Name:
- 2-(2-Methoxyphenoxy)ethylamine
- CAS:
- 1836-62-0
- MF:
- C9H13NO2
- Structure:
- Chemical Name:
- L-Octahydroindole-2-carboxylic acid
- CAS:
- 80875-98-5
- MF:
- C9H15NO2
- Structure:
- Chemical Name:
- 4-Methoxyisophthalic acid
- CAS:
- 2206-43-1
- MF:
- C9H8O5
- Structure:
- Chemical Name:
- 2-Butyl-3-(4-hydroxybenzoyl)benzofuran
- CAS:
- 52490-15-0
- MF:
- C19H18O3
- Structure:
- Chemical Name:
- 2-Chlorothioxanthone
- CAS:
- 86-39-5
- MF:
- C13H7ClOS
- Structure:
- Chemical Name:
- Isoxepac
- CAS:
- 55453-87-7
- MF:
- C16H12O4
- Structure:
- Chemical Name:
- 1,3-Dihydro-4-(2-hydroxyethyl)-2H-indole-2-one
- CAS:
- 139122-19-3
- MF:
- C10H11NO2
- Structure:
- Chemical Name:
- 3-Ethoxy-4-ethoxycarbonyl phenylacetic acid
- CAS:
- 99469-99-5
- MF:
- C13H16O5
- Structure:
- Chemical Name:
- Ciclesonide
- CAS:
- 126544-47-6
- MF:
- C32H44O7
- Structure:
- Chemical Name:
- alpha-(2,4-Dichlorophenyl)-1H-imidazole-1-ethanol
- CAS:
- 24155-42-8
- MF:
- C11H10Cl2N2O
- Structure:
- Chemical Name:
- Ketamine hydrochloride
- CAS:
- 1867-66-9
- MF:
- C13H16ClNO.ClH
- Structure:
- Chemical Name:
- trans-4-Isopropylcyclohexane carboxylic acid
- CAS:
- 7077-05-6
- MF:
- C10H18O2
- Structure:
- Chemical Name:
- N-Carbethoxy-4-piperidone
- CAS:
- 29976-53-2
- MF:
- C8H13NO3
- Structure:
- Chemical Name:
- Naphazoline nitrate
- CAS:
- 5144-52-5
- MF:
- C14H15N3O3
- Structure:
- Chemical Name:
- DL-10-CAMPHORSULFONIC ACID
- CAS:
- 5872-08-2
- MF:
- C10H16O4S
- Structure:
- Chemical Name:
- 2-Butyl-3-(3,5-Diiodo-4-hydroxy benzoyl) benzofuran
- CAS:
- 1951-26-4
- MF:
- C19H16I2O3
- Structure:
- Chemical Name:
- Pleuromulin
- CAS:
- 125-65-5
- MF:
- C22H34O5
- Structure:
- Chemical Name:
- 2-Pyrrolidinone
- CAS:
- 616-45-5
- MF:
- C4H7NO
- Structure:
- Chemical Name:
- OUABAIN OCTAHYDRATE
- CAS:
- 11018-89-6
- MF:
- C29H60O20
- Structure:
- Chemical Name:
- Fosphenytoin sodium
- CAS:
- 92134-98-0
- MF:
- C16H16N2NaO6P
- Structure:
- Chemical Name:
- Pentamidine isethionate
- CAS:
- 140-64-7
- MF:
- C23H36N4O10S2
- Structure:
- Chemical Name:
- Closantel sodium
- CAS:
- 61438-64-0
- MF:
- C22H15Cl2I2N2NaO2
- Structure:
- Chemical Name:
- SAQUINAVIR MESYLATE
- CAS:
- 149845-06-7
- MF:
- C39H54N6O8S
- Structure:
- Chemical Name:
- Fluorescein diacetate
- CAS:
- 596-09-8
- MF:
- C24H16O7
- Structure:
- Chemical Name:
- 2-(Aminomethyl)-1-ethylpyrrolidine
- CAS:
- 26116-12-1
- MF:
- C7H16N2
- Structure:
- Chemical Name:
- Articaine hydrochloride
- CAS:
- 23964-57-0
- MF:
- C13H20N2O3S.ClH
- Structure:
- Chemical Name:
- Flutrimazole
- CAS:
- 119006-77-8
- MF:
- C22H16F2N2
- Structure:
- Chemical Name:
- Hydroxocobalamin
- CAS:
- 13422-51-0
- MF:
- C62H90ClCoN13O15P
- Structure:
- Chemical Name:
- Pregna-4,6-diene-3,20-dione
- CAS:
- 1162-56-7
- MF:
- C21H28O2
- Structure:
- Chemical Name:
- Cyclobenzaprine hydrochloride
- CAS:
- 6202-23-9
- MF:
- C20H22ClN
- Structure:
- Chemical Name:
- Mefloquine hydrochloride
- CAS:
- 51773-92-3
- MF:
- C17H17ClF6N2O
- Structure:
- Chemical Name:
- 1-(4-Chlorobenzhydryl)piperazine
- CAS:
- 303-26-4
- MF:
- C17H19ClN2
- Structure:
- Chemical Name:
- 7-Amino-3-(1,2,3-triazol-4-ylthio)methyl cephalosporanic acid
- CAS:
- 37539-03-0
- MF:
- C10H11N5O3S2
- Structure:
- Chemical Name:
- Clobetasone butyrate
- CAS:
- 25122-57-0
- MF:
- C26H32ClFO5
- Structure:
- Chemical Name:
- 2-[4-Aminosulfonyl-phenyl]-ethyl-5-methylpyrazinecarboxamide
- CAS:
- 33288-71-0
- MF:
- C14H16N4O3S
- Chemical Name:
- Somatotropin
- CAS:
- 12629-01-5
- MF:
- C990H1529N263O299S7
- Structure:
- Chemical Name:
- Prednisolone succinate
- CAS:
- 2920-86-7
- MF:
- C25H32O8
- Structure:
- Chemical Name:
- Etifenin
- CAS:
- 63245-28-3
- MF:
- C16H22N2O5
- Structure:
- Chemical Name:
- 3-Pyridyl dimethylcarbamate
- CAS:
- 51581-32-9
- MF:
- C8H10N2O2
- Structure:
- Chemical Name:
- DICYCLOMINE HYDROCHLORIDE
- CAS:
- 67-92-5
- MF:
- C19H36ClNO2
- Structure:
- Chemical Name:
- 7-(2-HYDROXYETHYL)THEOPHYLLINE
- CAS:
- 519-37-9
- MF:
- C9H12N4O3
- Structure:
- Chemical Name:
- TERPIN MONOHYDRATE
- CAS:
- 2451-01-6
- MF:
- C10H22O3
- Chemical Name:
- GLOBULINS, CAT GAMMA
- CAS:
- 9007-83-4
- Structure:
- Chemical Name:
- 2-TERT-BUTYL-4-HYDROXYANISOLE
- CAS:
- 88-32-4
- MF:
- C11H16O2
- Structure:
- Chemical Name:
- N-BUTYL METHANESULPHONATE
- CAS:
- 1912-32-9
- MF:
- C5H12O3S
- Structure:
- Chemical Name:
- 3-BROMO-2-METHYLPROPIONIC ACID
- CAS:
- 56970-78-6
- MF:
- C4H7BrO2
- Structure:
- Chemical Name:
- Flumethasone 21-pivalate
- CAS:
- 2002-29-1
- MF:
- C27H36F2O6
- Structure:
- Chemical Name:
- QUININE SULFATE
- CAS:
- 549-56-4
- MF:
- C40H50N4O8S
- Structure:
- Chemical Name:
- Parbendazole
- CAS:
- 14255-87-9
- MF:
- C13H17N3O2
- Structure:
- Chemical Name:
- Prednicarbate
- CAS:
- 73771-04-7
- MF:
- C27H36O8
- Structure:
- Chemical Name:
- Methyl 4-acetamido-2-methoxybenzoate
- CAS:
- 4093-29-2
- MF:
- C11H13NO4
- Structure:
- Chemical Name:
- Hexamidine diisethionate
- CAS:
- 659-40-5
- MF:
- C22H32N4O6S
- Structure:
- Chemical Name:
- Dihydroergotoxine mesylate
- CAS:
- 8067-24-1
- MF:
- C20H29N3O5S
- Structure:
- Chemical Name:
- DL-TROPIC ACID
- CAS:
- 552-63-6
- MF:
- C9H10O3
- Structure:
- Chemical Name:
- Sultamicillin tosilate
- CAS:
- 83105-70-8
- MF:
- C32H38N4O12S3
- Structure:
- Chemical Name:
- 5-Nitro-2-furaldehyde diacetate
- CAS:
- 92-55-7
- MF:
- C9H9NO7
- Structure:
- Chemical Name:
- Benperidol
- CAS:
- 2062-84-2
- MF:
- C22H24FN3O2
- Structure:
- Chemical Name:
- Triamcinolone diacetate
- CAS:
- 67-78-7
- MF:
- C25H31FO8
- Structure:
- Chemical Name:
- 1-ETHYL-7-CHLORO-6-FLUORO-1,4-DIHYDRO-4-OXOQUINOLINE-3-CARBOXYLIC ACID
- CAS:
- 68077-26-9
- MF:
- C12H9ClFNO3
- Structure:
- Chemical Name:
- 3-MERCAPTOISOBUTYRIC ACID
- CAS:
- 26473-47-2
- MF:
- C4H8O2S
- Structure:
- Chemical Name:
- 2-Chloroadenine
- CAS:
- 1839-18-5
- MF:
- C5H4ClN5
- Structure:
- Chemical Name:
- Iminodibenzyl
- CAS:
- 494-19-9
- MF:
- C14H13N
- Structure:
- Chemical Name:
- PROXYPHYLLINE
- CAS:
- 603-00-9
- MF:
- C10H14N4O3
- Structure:
- Chemical Name:
- Dibenzosuberone
- CAS:
- 1210-35-1
- MF:
- C15H12O
- Structure:
- Chemical Name:
- Mehtyl 6-[3-(1-adamanty)-4-methoxy phenyl]-2-naphthoate
- CAS:
- 106685-41-0
- MF:
- C29H30O3
- Structure:
- Chemical Name:
- Pemetrexed Disodium Heptahydrate
- CAS:
- 357166-29-1
- MF:
- C20H24N5NaO7
- Structure:
- Chemical Name:
- PTEROIC ACID
- CAS:
- 119-24-4
- MF:
- C14H12N6O3
- Structure:
- Chemical Name:
- 2,3-Dimethylaniline
- CAS:
- 87-59-2
- MF:
- C8H11N
- Structure:
- Chemical Name:
- Cilastatin sodium
- CAS:
- 81129-83-1
- MF:
- C16H25N2O5S.Na
- Structure:
- Chemical Name:
- CHLORDIAZEPOXIDE HYDROCHLORIDE
- CAS:
- 438-41-5
- MF:
- C16H15Cl2N3O
- Structure:
- Chemical Name:
- Narcotine
- CAS:
- 128-62-1
- MF:
- C22H23NO7
- Structure:
- Chemical Name:
- N-Methyl Desloratadine
- CAS:
- 38092-89-6
- MF:
- C20H21ClN2
- Structure:
- Chemical Name:
- Phthaloyl amlodipine
- CAS:
- 88150-62-3
- MF:
- C28H27ClN2O7
- Structure:
- Chemical Name:
- GRANISETRON IMPURITY B
- CAS:
- 76272-56-5
- MF:
- C9H18N2
- Structure:
- Chemical Name:
- Etilefrine hydrochloride
- CAS:
- 943-17-9
- MF:
- C10H15NO2.ClH
- Structure:
- Chemical Name:
- Dinoprost tromethamine
- CAS:
- 38562-01-5
- MF:
- C24H45NO8
- Chemical Name:
- Cellulose acetate phthalate
- CAS:
- 9004-38-0
- MF:
- C116H116O64
- Structure:
- Chemical Name:
- Testosterone decanoate
- CAS:
- 5721-91-5
- MF:
- C29H46O3