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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:1-Isobutyl-4-piperidone
- CAS:72544-16-2
- MF:C9H17NO
- Structure:
- Chemical Name:Fluphenazine decanoate
- CAS:5002-47-1
- MF:C32H44F3N3O2S
- Structure:
- Chemical Name:Formoterol fumarate dihydrate
- CAS:183814-30-4
- MF:C23H28N2O8
- Structure:
- Chemical Name:GUANERAN
- CAS:5581-52-2
- MF:C9H8N8O2S
- Structure:
- Chemical Name:BENZATHINE PENICILLINE G TETRAHYDRATE
- CAS:41372-02-5
- MF:C32H38N4O4S
- Structure:
- Chemical Name:Chloramphenicol sodium succinate
- CAS:982-57-0
- MF:C15H15Cl2N2O8.Na
- Structure:
- Chemical Name:4-(4-Chloro-benzyl)-2H-phthalazin-1-one
- CAS:53242-88-9
- MF:C15H11ClN2O
- Structure:
- Chemical Name:2,6-DIMETHYL-4-NITROSOPHENOL
- CAS:14818-35-0
- MF:C12H16O2
- Structure:
- Chemical Name:Milbemycin oxime
- CAS:129496-10-2
- MF:2C32H45NO7.2C31H43NO7
- Structure:
- Chemical Name:ALPRENOLOL HYDROCHLORIDE
- CAS:13707-88-5
- MF:C15H24ClNO2
- Structure:
- Chemical Name:4-BUTYL-4-[HYDROXYMETHYL]-1,2-DIPHENYL-3,5-PYRAZOLIDINEDIONE HYDROGEN SUCCINATE [ESTER]
- CAS:27470-51-5
- MF:C24H26N2O6
- Chemical Name:ENTEROKINASE
- CAS:9014-74-8
- MF:NULL
- Chemical Name:CHONDROITIN SULFATE B SODIUM SALT
- CAS:54328-33-5
- MF:NULL
- Structure:
- Chemical Name:DOTHIEPIN HCL
- CAS:897-15-4
- MF:C19H22ClNS
- Structure:
- Chemical Name:Calcium levulinate dihydrate
- CAS:5743-49-7
- MF:C10H18CaO8
- Structure:
- Chemical Name:Rilmenidine phosphate
- CAS:85409-38-7
- MF:C10H19N2O5P
- Structure:
- Chemical Name:Piretanide
- CAS:55837-27-9
- MF:C17H18N2O5S
- Structure:
- Chemical Name:Potassium trichloroammineplatinate (II)
- CAS:13820-91-2
- MF:Cl3H3KNPt
- Structure:
- Chemical Name:alpha-Ethyl-2-oxo-1-pyrrolidineacetic acid
- CAS:67118-31-4
- MF:C8H13NO3
- Structure:
- Chemical Name:Disodium clodronate tetrahydrate
- CAS:88416-50-6
- MF:CH7Cl2NaO7P2
- Structure:
- Chemical Name:Framycetin sulphate
- CAS:4146-30-9
- MF:C23H48N6O17S
- Chemical Name:MOLGRASTIM
- CAS:99283-10-0
- MF:
- Structure:
- Chemical Name:2-(4-Methoxybenzylamino)pyridine
- CAS:52818-63-0
- MF:C13H14N2O
- Structure:
- Chemical Name:3-METHOXY-DL-TYROSINE
- CAS:7636-26-2
- MF:C10H13NO4
- Structure:
- Chemical Name:4-(DIPHENYLMETHOXY)PIPERIDINE
- CAS:58258-01-8
- MF:C18H21NO
- Structure:
- Chemical Name:N,N'-Dipropylurea
- CAS:623-95-0
- MF:C7H16N2O
- Structure:
- Chemical Name:ISOPRENALINE SULFATE
- CAS:6700-39-6
- MF:2C11H17NO3.2H2O.H2O4S
- Structure:
- Chemical Name:Spectinomycin sulfate tetrahydrate
- CAS:64058-48-6
- MF:C14H26N2O11S
- Structure:
- Chemical Name:ACETYLSALICYLSALICYLIC ACID
- CAS:530-75-6
- MF:C16H12O6
- Structure:
- Chemical Name:DIHYDROERGOCRISTINE MESYLATE
- CAS:24730-10-7
- MF:C36H45N5O8S
- Structure:
- Chemical Name:1-Cyanocyclohexaneacetic acid
- CAS:133481-09-1
- MF:C9H13NO2
- Structure:
- Chemical Name:2,4-DIAMINO-6-DIMETHYLAMINO-1,3,5-TRIAZINE
- CAS:1985-46-2
- MF:C5H10N6
- Structure:
- Chemical Name:CAPTOPRIL DISULFIDE
- CAS:64806-05-9
- MF:C18H28N2O6S2
- Structure:
- Chemical Name:2-BENZYL-1,2,3,6,7,11B-HEXAHYDRO-4H-PYRAZION[2,1-A] ISOQUINOLINE-4-ONE
- CAS:54761-87-4
- MF:C19H18N2O2
- Structure:
- Chemical Name:Donepezil Impurity 3
- CAS:1023500-88-0
- MF:C24H27NO4
- Structure:
- Chemical Name:Fesoterodine Related Impurity 4
- CAS:214601-12-4
- MF:C22H29NO2
- Structure:
- Chemical Name:Prasugrel Impurity 14 Maleate
- CAS:1373350-60-7
- MF:C24H25BrFNO7S
- Structure:
- Chemical Name:Sofosbuvir Impurity 32
- CAS:1157884-58-6
- MF:C20H17FO6
- Structure:
- Chemical Name:Torsemide Related Compound 1
- CAS:947327-54-0
- MF:C13H13N3O2S
- Structure:
- Chemical Name:Vortioxetine Impurity 3
- CAS:508233-82-7
- MF:C17H20N2S
- Structure:
- Chemical Name:CYCLOPENTYL BENZOATE
- CAS:32651-38-0
- MF:C12H14O2
- Structure:
- Chemical Name:4,5-DICHLOROTHIOPHENE-2-CARBOXYLIC ACID
- CAS:31166-29-7
- MF:C5H2Cl2O2S
- Structure:
- Chemical Name:N,O-Dibenzylated formoterol
- CAS:43229-70-5
- MF:C33H36N2O4
- Chemical Name:Entacapone
- CAS:
- MF:
- Structure:
- Chemical Name:nifedipine iMpurity
- CAS:79781-06-9
- MF:C17H17N3O7
- Chemical Name:Linagliptin Impurity A
- CAS:
- MF:
- Structure:
- Chemical Name:Dehydropitavastatin ethyl ester
- CAS:254452-91-0
- MF:C27H26FNO4
- Structure:
- Chemical Name:(S)-2-(2-oxo-4-propyl-2,5-dihydro-1H-pyrrol-1-yl)butanamide
- CAS:357338-13-7
- MF:C11H18N2O2
- Chemical Name:Linagliptin Impurity V
- CAS:
- MF:
- Structure:
- Chemical Name:methyl 2-(4-(2-chloroethyl)phenyl)-2-methylpropanoate
- CAS:1181267-33-3
- MF:C13H17ClO2
- Structure:
- Chemical Name:(2RS)-1-bromo-2-(2,4-difluorophenyl)-3-(1H-1,2,4-triazol-1-yl)propan-2-ol
- CAS:150194-52-8
- MF:C11H10BrF2N3O
- Structure:
- Chemical Name:(S)-2-(((1R,2S,5S)-2-(2-((5-chloropyridin-2-yl)amino)-2-oxoacetamido)-5-(dimethylcarbamoyl)cyclohexyl)carbamoyl)-5-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine 5-oxide
- CAS:
- MF:C24H30ClN7O5S
- Chemical Name:Etoricoxib Impurity 18
- CAS:
- MF:
- Structure:
- Chemical Name:OXELADIN CITRATE
- CAS:52432-72-1
- MF:C20H33NO3.C6H8O7
- Structure:
- Chemical Name:Ibrutinib Impurity 4
- CAS:1807619-68-6
- MF:C17H12ClN5O
- Chemical Name:Imatinib Impurity 3
- CAS:
- MF:
- Chemical Name:Mirabegron Impurity 16
- CAS:
- MF:
- Chemical Name:Olaparib Impurity 2
- CAS:
- MF:
- Structure:
- Chemical Name:Sofosbuvir Impurity 7
- CAS:1884385-12-9
- MF:C20H19FO6
- Structure:
- Chemical Name:Vonoprazan Impurity 3
- CAS:928325-41-1
- MF:C17H15F2N3O2S
- Chemical Name:Cinacalcet Impurity 22
- CAS:
- MF:
- Chemical Name:Dapagliflozin Impurity C
- CAS:
- MF:
- Chemical Name:Dasatinib Impurity E
- CAS:
- MF:
- Chemical Name:Ixazomib Impurity
- CAS:
- MF:
- Chemical Name:Nevirapine Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Omarigliptin Impurity
- CAS:1819364-01-6
- MF:C16H18F2N4O
- Structure:
- Chemical Name:Palbociclib Impurity 8
- CAS:827022-31-1
- MF:C31H41N7O4
- Structure:
- Chemical Name:Sitagliptin EP Impurity C
- CAS:1345822-86-7
- MF:C16H19F5N5O5P
- Structure:
- Chemical Name:Trifluridine Impurity
- CAS:2086328-10-9
- MF:C10H11F3N2O5
- Chemical Name:Valsartan related compound H
- CAS:
- MF:
- Structure:
- Chemical Name:Vildagliptin Related Compound H
- CAS:2253194-13-5
- MF:C12H16N4O
- Chemical Name:Moxifloxacin Impurity 7
- CAS:
- MF:
- Structure:
- Chemical Name:(R)-6-Benzyloxy-8-(oxiran-2-yl)-4H-benzo[1,4]oxazin-3-one
- CAS:869478-12-6
- MF:C17H15NO4
- Structure:
- Chemical Name:Merariveron impurity D
- CAS:
- MF:C26H28N6O3S2
- Chemical Name:Cefazolin impurity E
- CAS:
- MF:
- Chemical Name:Lamivudine Impurity Mixture
- CAS:
- MF:
- Structure:
- Chemical Name:Rifaximin impurity B
- CAS:1351775-04-6
- MF:C43H49N3O11
- Structure:
- Chemical Name:4-(3-(Piperidin-1-yl)propoxy)benzoic acid
- CAS:767286-87-3
- MF:C15H21NO3
- Structure:
- Chemical Name:5-Chloro-3-sulfino-2-thiophenecarboxylic acid
- CAS:187746-97-0
- MF:C5H3ClO4S2
- Structure:
- Chemical Name:ethyl (S)-10-fluoro-3-methyl-7-oxo- 2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylate
- CAS:431058-46-7
- MF:C15H14FNO4
- Structure:
- Chemical Name:methyl (Z)-3-(((4-(methylamino)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate
- CAS:
- MF:C24H21N3O3
- Structure:
- Chemical Name:Isavuconazole Impurity 11
- CAS:2732924-99-9
- MF:C10H16ClN3O2
- Structure:
- Chemical Name:Levosimendan Impurity 2
- CAS:103416-88-2
- MF:C11H12N2O2
- Structure:
- Chemical Name:Aprepitant EP Impurity B
- CAS:2206606-86-0
- MF:C29H25F7N4O3
- Structure:
- Chemical Name:Famotidine EP Impurity A
- CAS:88061-72-7
- MF:C8H15N7O2S3
- Structure:
- Chemical Name:Meloxicam EP Impurity D
- CAS:1331636-17-9
- MF:C16H17N3O4S2
- Structure:
- Chemical Name:Erythromycin Impurity
- CAS:40554-78-7
- MF:C37H65NO12
- Structure:
- Chemical Name:Fluconazole EP Impurity I
- CAS:150168-54-0
- MF:C13H14BrF2N7O
- Structure:
- Chemical Name:1-benzyl-2-methyl-1H-imidazole-carbaldehyde
- CAS:39269-74-4
- MF:C12H12N2O
- Structure:
- Chemical Name:Sacubitril Impurity
- CAS:1015037-46-3
- MF:C23H27NO4
- Structure:
- Chemical Name:Desloratadine Impurity
- CAS:50603-12-8
- MF:C20H21N
- Chemical Name:Olaparib Impurity H
- CAS:
- MF:
- Chemical Name:Brexpiprazole Impurity B
- CAS:
- MF:
- Chemical Name:Dapoxetine iMpurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Irbesartan Impurity 4
- CAS:
- MF:C25H28N6O
- Structure:
- Chemical Name:2-cyclopentylidene-2-phenylacetic acid
- CAS:
- MF:C13H14O2
- Chemical Name:Cabozantinib impurity B
- CAS:
- MF:
- Structure:
- Chemical Name:Metoprolol IMpurity 3
- CAS:
- MF:C15H25NO3
- Chemical Name:Mirabegron Impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:Desfluoro Pitavastatin Calcium
- CAS:847849-67-6
- MF:C25H25NO4