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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:ISO-MALATHION
- CAS:3344-12-5
- MF:C10H19O6PS2
- Structure:
- Chemical Name:Citalopram hydrochloride
- CAS:85118-27-0
- MF:C20H22ClFN2O
- Structure:
- Chemical Name:exo-Granisetron (Granisetron Impurity F)
- CAS:127472-42-8
- MF:C18H24N4O
- Structure:
- Chemical Name:dacisteine
- CAS:18725-37-6
- MF:C7H11NO4S
- Structure:
- Chemical Name:OXOLINIC ACID IMPURITY B
- CAS:16172-03-5
- MF:C15H15NO5
- Structure:
- Chemical Name:DESETHYLENE CIPROFLOXACIN, HYDROCHLORIDE
- CAS:528851-31-2
- MF:C15H16FN3O3.ClH
- Structure:
- Chemical Name:(±)-2-methyl-1-nitrosoindoline
- CAS:85440-79-5
- MF:C9H10N2O
- Structure:
- Chemical Name:(5alpha)-7,8-didehydro-4,5-epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6-one
- CAS:508-54-3
- MF:C18H19NO4
- Structure:
- Chemical Name:Desmethyl Chlorpheniramine Maleate Salt
- CAS:22630-25-7
- MF:C19H21ClN2O4
- Structure:
- Chemical Name:4-O-BETA-GALACTOPYRANOSYL-D-MANNOPYRANOSE
- CAS:50468-56-9
- MF:C12H22O11
- Structure:
- Chemical Name:Morphine Sulfate
- CAS:6211-15-0
- MF:C34H50N2O15S
- Structure:
- Chemical Name:1-(3-Chlorophenyl)-2-hydroxy-1-propanone
- CAS:152943-33-4
- MF:C9H9ClO2
- Structure:
- Chemical Name:3-Oxo Ropinirole Hydrochloride
- CAS:221264-21-7
- MF:C16H23ClN2O2
- Structure:
- Chemical Name:7-hydroxy-2-methyl-4H-chromen-4-one
- CAS:6320-42-9
- MF:C10H8O3
- Structure:
- Chemical Name:Desisobutyryl Ciclesonide
- CAS:161115-59-9
- MF:C28H38O6
- Structure:
- Chemical Name:Des[2-[(2-Hydroxyethyl)aMino]ethyl] Mitoxantrone (Mitoxantrone IMpurity A)
- CAS:89991-52-6
- MF:C18H19N3O5
- Structure:
- Chemical Name:OXYBUTYNIN IMPURITY A
- CAS:1199574-71-4
- MF:C22H35NO3
- Structure:
- Chemical Name:PHENYTOIN RELATED COMPOUND B (50 MG) (AL-PHA-((AMINOCARBONYL)AMINO)-ALPHA-PHENYL BEN-ZENEACETIC ACID)
- CAS:6802-95-5
- MF:C15H14N2O3
- Structure:
- Chemical Name:CLEBOPRIDE MALATE
- CAS:57645-91-7
- MF:C20H24ClN3O2.C4H6O5
- Structure:
- Chemical Name:1-(3-Chlorophenyl)-1-hydroxy-2-propanone
- CAS:857233-13-7
- MF:C9H9ClO2
- Structure:
- Chemical Name:3S, 5S enantioMer of Atorvastatin CalciuM
- CAS:1105067-88-6
- MF:C33H34CaFN2O5+
- Structure:
- Chemical Name:Telmisartan Related Compound B (15 mg) (4'-[(1,7'-dimethyl-2'-propyl-1H,1'H-2,5'-bibenzo[d]imidazol-1'-yl)methyl]biphenyl-2-carboxylic acid)
- CAS:1026353-20-7
- MF:C33H30N4O2
- Chemical Name:EPOXIDIZED LINSEED OIL
- CAS:8016-11-3
- MF:
- Structure:
- Chemical Name:LEVODOPA RELATED COMPOUND A (50 MG) (3-(3,4,6-TRIHYDROXYPHENYL)-ALANINE)
- CAS:27244-64-0
- MF:C9H11NO5
- Structure:
- Chemical Name:3-Nitro-4-phenoxy-5-sulfaMoylbenzoic Acid
- CAS:28328-53-2
- MF:C13H10N2O7S
- Structure:
- Chemical Name:ALLOPURINOL IMPURITY C
- CAS:1346604-13-4
- MF:C6H6N6O
- Structure:
- Chemical Name:PEAK E
- CAS:132685-02-0
- MF:C24H26N4O4
- Structure:
- Chemical Name:Chlorcyclizine hydrochloride
- CAS:14362-31-3
- MF:C18H22Cl2N2
- Structure:
- Chemical Name:1-[4-(2-Hydroxyethyl)phenoxy]-2,3-epoxypropane
- CAS:63659-17-6
- MF:C15H20O3
- Structure:
- Chemical Name:Almagate
- CAS:66827-12-1
- MF:CH6AlMgO4(-3)
- Structure:
- Chemical Name:Loperamide
- CAS:106900-12-3
- MF:C29H33ClN2O3
- Structure:
- Chemical Name:L-Glutamic acid, N-[4-[[ (2-amino-1, 4-dihydro-4-oxo-6-pteridinyl)meth yl]methylamino]benzoyl]-
- CAS:2410-93-7
- MF:C20H21N7O6
- Structure:
- Chemical Name:2-(Acetylsulfanyl)ethanesulphonic
- CAS:69536-71-6
- MF:C4H8O4S2
- Structure:
- Chemical Name:rac 1-Chloro-3-[4-(2-methoxyethyl)phenoxy]-2-propanol
- CAS:56718-76-4
- MF:C12H17ClO3
- Structure:
- Chemical Name:Albuterol Aldehyde
- CAS:156339-88-7
- MF:C13H19NO3
- Structure:
- Chemical Name:4-phenylbutylphosphonic acid
- CAS:46348-61-2
- MF:C10H15O3P
- Structure:
- Chemical Name:17R-Drospirenone
- CAS:90457-65-1
- MF:C24H30O3
- Structure:
- Chemical Name:Trandolapril Related Compound D (25 mg) ((S)-ethyl 2-[(3S, 5aS, 9aR, 10aS)-3-methyl-1,4-dioxodecahydropyrazino[1,2-a]indol-2(1H)-yl]-4-phenylbutanoate)
- CAS:149881-40-3
- MF:C24H32N2O4
- Structure:
- Chemical Name:Benzoic acid, 2-(hexahydro-1-Methyl-1H-azepin-4-yl)hydrazide
- CAS:110406-94-5
- MF:C14H21N3O
- Structure:
- Chemical Name:D-PENICILLAMINE DISULFIDE
- CAS:20902-45-8
- MF:C10H20N2O4S2
- Structure:
- Chemical Name:DESETHYL CHLOROQUINE
- CAS:1476-52-4
- MF:C16H22ClN3
- Chemical Name:HIDE POWDER
- CAS:
- MF:
- Structure:
- Chemical Name:BETAMETHASONE BENZOATE (200 MG)
- CAS:22298-29-9
- MF:C35H41FO8
- Structure:
- Chemical Name:TIZANIDINE RELATED COMPOUND B (50 MG) (N-ACETYLTIZANIDINE)
- CAS:173532-15-5
- MF:C11H10ClN5OS
- Structure:
- Chemical Name:9,11-Didehydroestriol
- CAS:246021-20-5
- MF:C18H22O3
- Structure:
- Chemical Name:1-[3-(4-tert-Butylbenzoyl)propyl]-4-hydroxypiperidine
- CAS:97928-18-2
- MF:C19H29NO2
- Structure:
- Chemical Name:benazepril hydrochloride
- CAS:215447-89-5
- MF:C24H28N2O5HCl
- Structure:
- Chemical Name:L-Nateglinide
- CAS:105816-05-5
- MF:C19H27NO3
- Structure:
- Chemical Name:cis-Tranylcypromine hydrochloride
- CAS:54779-58-7
- MF:C9H12ClN
- Structure:
- Chemical Name:(1S–4R)-4-(2-amino-6-chloro-9H-purin-9-yl)-2-cyclopentene-1-methanol hydrochloride
- CAS:172015-79-1
- MF:C11H12ClN5O.ClH
- Structure:
- Chemical Name:Atorvastatin Related Compound C
- CAS:693793-53-2
- MF:C33H36CaF2N2O5
- Structure:
- Chemical Name:[2-(3-pyridinyl)ethylidene-1,1]bis(phosphonic acid)
- CAS:75755-10-1
- MF:C7H11NO6P2
- Structure:
- Chemical Name:2,2'-Binaphthalene-6,6'-dicarboxylic Acid
- CAS:932033-58-4
- MF:C22H14O4
- Structure:
- Chemical Name:INDAPAMIDE RELATED COMPOUND A (50 MG) (4-CHLORO-N-(2-METHYL-INDOL-1-YL)-3-SULFAMOYLBEN-ZAMIDE) (AS)
- CAS:63968-75-2
- MF:C16H14ClN3O3S
- Structure:
- Chemical Name:Gabapentin Related Compound D
- CAS:1076198-17-8
- MF:C18H29NO3
- Structure:
- Chemical Name:Vardenafil hydrochloride trihydrate
- CAS:330808-88-3
- MF:C23H35ClN6O5S
- Structure:
- Chemical Name:Norglipin
- CAS:16444-19-2
- MF:C21H23NO3
- Structure:
- Chemical Name:4-[Methyl[(2-amino-4-hydroxypteridine)-6-ylmethyl]amino]benzoic acid
- CAS:5623-18-7
- MF:C15H14N6O3
- Structure:
- Chemical Name:2-(3-CARBOXYPHENYL)PROPIONIC ACID
- CAS:68432-95-1
- MF:C10H10O4
- Structure:
- Chemical Name:rac 5-Desfluoro Voriconazole
- CAS:182369-73-9
- MF:C16H15F2N5O
- Structure:
- Chemical Name:3-Oxo Ziprasidone (Ziprasidone Impurity B)
- CAS:1159977-56-6
- MF:C21H19ClN4O2S
- Structure:
- Chemical Name:Desfluoro Risperidone
- CAS:106266-09-5
- MF:C23H28N4O2
- Structure:
- Chemical Name:Des(2,3-dihydroxypropyl) Iodixanol
- CAS:255376-57-9
- MF:C32H38I6N6O13
- Structure:
- Chemical Name:DAUNOMYCINONE
- CAS:21794-55-8
- MF:C21H18O8
- Structure:
- Chemical Name:Duloxetine IMpurity A
- CAS:947686-09-1
- MF:C25H23NO3S
- Structure:
- Chemical Name:Labetalol IMpurity A
- CAS:1391051-99-2
- MF:C19H23NO4
- Structure:
- Chemical Name:Cetirizine Ethyl Ester (USP RC A)
- CAS:246870-46-2
- MF:C23H29ClN2O3
- Structure:
- Chemical Name:6,6'-DiMethoxy-2,2'-binaphthalene
- CAS:29619-45-2
- MF:C22H18O2
- Structure:
- Chemical Name:FLUCONAZOLE RELATED COMPOUND B (10 MG) (2-(4-FLUOROPHENYL)-1,3-BIS(1 H-1,2,4-TRIAZOL-1 -YL)-PROPAN-2-OL)
- CAS:81886-51-3
- MF:C13H13FN6O
- Structure:
- Chemical Name:LEVOCARNITINE RELATED COMPOUND A (100 MG) (3-CARBOXY-N,N,N-TRIMETHYL-2-PROPEN-1-AMINIUM CHLORIDE)
- CAS:6538-82-5
- MF:C7H13ClNO2
- Structure:
- Chemical Name:Levomepromazine hydrochloride
- CAS:1236-99-3
- MF:C19H24N2OS.ClH
- Structure:
- Chemical Name:Prednisolone 21-trimethylacetate
- CAS:1107-99-9
- MF:C26H36O6
- Structure:
- Chemical Name:C00984
- CAS:3646-73-9
- MF:C6H12O6
- Structure:
- Chemical Name:LevetiracetaM IMpurity B
- CAS:358629-47-7
- MF:C8H12N2O2
- Structure:
- Chemical Name:Aripiprazole N1-Oxide
- CAS:573691-09-5
- MF:C23H27Cl2N3O3
- Structure:
- Chemical Name:N-De(4-sulfonaMidophenyl)-N'-(4-sulfonaMidophenyl) Celecoxib
- CAS:331943-04-5
- MF:C17H14F3N3O2S
- Structure:
- Chemical Name:Tioconazole Related Compound A (25 mg) (1-[2,4-Dichloro-beta-[(3-thenyl)-oxy]phenethyl]imidazole hydrochloride)
- CAS:61709-33-9
- MF:C16H15Cl3N2OS
- Structure:
- Chemical Name:5-[2-Ethoxy-5-[(4-Methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-Methyl-3-(2-Methylpropyl)-7H-pyrazolo[4,3-d]pyriMidin-7-one
- CAS:1391053-95-4
- MF:C23H32N6O4S
- Structure:
- Chemical Name:Loratadine EP IMpurity F
- CAS:125743-80-8
- MF:C22H24ClFN2O2
- Structure:
- Chemical Name:N-[[(HEXAHYDROCYCLOPENTA [C]PYRROL-2(1H)-YL)AMINO]CARBONYL]-2-METHYL BENZENESULFONAMIDE
- CAS:1076198-18-9
- MF:C15H21N3O3S
- Structure:
- Chemical Name:HALOPERIDOL RELATED COMPOUND A (15 MG) (4,4'-BIS[(4-P-CHLOROPHENYL)-4-HYDROXY-PIPERIDINO]-BU-TYROPHENONE)
- CAS:67987-08-0
- MF:C32H36Cl2N2O3
- Structure:
- Chemical Name:5-Amino-2,4,6-triiodo-N-methylisophthalamic Acid
- CAS:2280-89-9
- MF:C9H7I3N2O3
- Structure:
- Chemical Name:OXITROPIUM BROMIDE
- CAS:30286-75-0
- MF:C19H26BrNO4
- Structure:
- Chemical Name:Dehydronitrendipine
- CAS:89267-41-4
- MF:C18H18N2O6
- Structure:
- Chemical Name:4-Benzyl Albuterol
- CAS:56796-66-8
- MF:C20H27NO3
- Structure:
- Chemical Name:cephaeline hydrochloride
- CAS:5853-29-2
- MF:C28H39ClN2O4
- Structure:
- Chemical Name:Coenzyme
- CAS:45127-11-5
- MF:C4H10O6S4
- Structure:
- Chemical Name:7-AMINO-3-[(Z)-PROP-1-ENYL]-3-CEPHEM-4-CARBOXYLIC ACID
- CAS:106447-44-3
- MF:C10H12N2O3S
- Structure:
- Chemical Name:2,6-Diisopropyl-1,4-benzoquinone
- CAS:1988-11-0
- MF:C12H16O2
- Structure:
- Chemical Name:Repaglinide EP Impurity E
- CAS:147852-26-4
- MF:C27H36N2O4
- Structure:
- Chemical Name:Gemfibrozil Related Compound A ,(E,Z)-2,2-dimethyl-5-[2,5-dimethyl-4-(propene-1-yl)phenoxy]valeric acid
- CAS:500904-61-0
- MF:C18H26O3
- Structure:
- Chemical Name:Atorvastatin Related Compound A
- CAS:433289-83-9
- MF:C33H35CaN2O5+
- Structure:
- Chemical Name:4-DesMethyl-3-Methyl Celecoxib
- CAS:170570-01-1
- MF:C17H14F3N3O2S
- Structure:
- Chemical Name:6-O-METHYLCODEINE
- CAS:2859-16-7
- MF:C19H23NO3
- Structure:
- Chemical Name:Prednisolone tebutate
- CAS:7681-14-3
- MF:C27H38O6
- Structure:
- Chemical Name:ACETOPHENAZINE MALEATE (200 MG)
- CAS:5714-00-1
- MF:C53H64N6O11S2
- Structure:
- Chemical Name:apovincamine
- CAS:4880-92-6
- MF:C21H24N2O2
- Structure:
- Chemical Name:4-cyclohexyl-alpha-methylnaphthalene-1-acetic acid
- CAS:71109-09-6
- MF:C19H22O2
- Structure:
- Chemical Name:eicosapentaenoic acid ethyl ester
- CAS:73310-10-8
- MF:C22H34O2
- Structure:
- Chemical Name:SalMeterol Xinafoate Adduct IMpurity
- CAS:1330076-52-2
- MF:C36H43NO6