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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:Phenol, 2,4-dibromo-3-methyl-
- CAS:13321-75-0
- MF:C7H6Br2O
- Structure:
- Chemical Name:N-((4-FLUOROPHENYL)METHYL)ETHANAMIDE
- CAS:86010-68-6
- MF:C9H10FNO
- Structure:
- Chemical Name:Benzenediazonium, 4-(ethoxycarbonyl)-, chloride
- CAS:2028-79-7
- MF:C9H9ClN2O2
- Structure:
- Chemical Name:2,4-Pteridinediamine,6-(methoxymethyl)-
- CAS:40110-13-2
- MF:C8H10N6O
- Structure:
- Chemical Name:Fingolimod EP Impurity D
- CAS:780729-32-0
- MF:C21H37NO2
- Structure:
- Chemical Name:Pentanedioic acid, 2,4-diacetyl-3-(3-nitrophenyl)-, dimethyl ester
- CAS:89080-61-5
- MF:C17H19NO8
- Structure:
- Chemical Name:2-Thiazoleacetic acid,4-carboxy-2,5-dihydro-5-(4-hydroxybutylidene)-a-[(1R)-1-hydroxyethyl]-, disodium salt, (aS,2R,5Z)- (9CI)
- CAS:130609-10-8
- MF:C12H18NNaO6S
- Structure:
- Chemical Name:4,4'-Iminodiphenol hydrochloride
- CAS:1965310-24-0
- MF:C12H12ClNO2
- Structure:
- Chemical Name:Apalutamide Acid Impurity
- CAS:1332391-04-4
- MF:C20H12F4N4O3S
- Chemical Name:Cefradine Impurity D
- CAS:
- MF:
- Chemical Name:Metronidazole Impurity 2
- CAS:
- MF:
- Structure:
- Chemical Name:ethyl 2-(3-cyano-4-isopropoxyphenyl)-4-methylthiazole-5- carboxylate
- CAS:144060-84-4
- MF:C17H18N2O3S
- Chemical Name:Dasatinib Impurity 24
- CAS:
- MF:
- Structure:
- Chemical Name:Pregabalin Impurity 19
- CAS:89015-27-0
- MF:C11H14O3
- Structure:
- Chemical Name:Quercetin 3-O-(6''-galloyl)-β-D-glucopyranoside
- CAS:56316-75-7
- MF:C28H24O16
- Chemical Name:Alogliptin Impurity 7
- CAS:
- MF:
- Chemical Name:Alogliptin Impurity 7
- CAS:
- MF:
- Structure:
- Chemical Name:diethyl 2-(2-bromoethyl)-malonate
- CAS:18721-64-7
- MF:C9H15BrO4
- Structure:
- Chemical Name:methyl 2,5-dihydroxybenzenesulfonate
- CAS:
- MF:C7H8O5S
- Chemical Name:Pinocembroside,Pinocembrin41-O-beta-D-glucoside
- CAS:
- MF:
- Structure:
- Chemical Name:4-(1-(dimethylamino)ethyl)phenyl ethyl(methyl)carbamate 2,3- dihydroxysuccinate
- CAS:123441-05-4
- MF:C14H22N2O2
- Structure:
- Chemical Name:Dapagliflozin mono acetyl impurity
- CAS:1632287-34-3
- MF:C23H27ClO7
- Chemical Name:Piperacillin Impurity 3
- CAS:
- MF:
- Structure:
- Chemical Name:Varenicline Impurity 5
- CAS:950781-87-0
- MF:C11H13N3O2
- Structure:
- Chemical Name:4-MORPHOLIN-4-YL-1,2,5-THIADIAZOL-3-OL
- CAS:30165-97-0
- MF:C6H9N3O2S
- Structure:
- Chemical Name:Amlodipine Impurity 29
- CAS:93848-82-9
- MF:C22H27ClN2O6
- Structure:
- Chemical Name:Amlodipine Impurity 34
- CAS:
- MF:C26H31ClN2O8S
- Chemical Name:Axitinib N-Glucuronide (M7)
- CAS:
- MF:
- Structure:
- Chemical Name:1-benzyl-4-(piperidin-1-yl)-1,2,3,6-tetrahydropyridine
- CAS:53877-76-2
- MF:C17H24N2
- Structure:
- Chemical Name:propan-2-yl 2-[(4R,6R)-6-{2-[2-(4-fluorophenyl)-3-phenyl-4-(phenylcarbamoyl)-5-(propan-2-yl)-1H-pyrrol-1-yl]ethyl}-2,2-dimethyl-1,3-dioxan-4-yl]acetate
- CAS:1112262-71-1
- MF:C39H45FN2O5
- Structure:
- Chemical Name:Pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-9,11-epoxy-16,17-dihydroxy-, (9β,11β,16α)-
- CAS:58404-37-8
- MF:C23H28O7
- Structure:
- Chemical Name:TYRPHOSTIN AG 1290
- CAS:160391-70-8
- MF:C10H6N2O6
- Structure:
- Chemical Name:N-[1-(4-methoxyphenyl)-2-methylpropan-2-yl]acetamide
- CAS:926319-54-2
- MF:C13H19NO2
- Structure:
- Chemical Name:Cetirizine EP Impurity B(base)
- CAS:942193-17-1
- MF:C19H21ClN2O2
- Structure:
- Chemical Name:Dezocine Impurity 3
- CAS:100667-16-1
- MF:C16H21NO2
- Structure:
- Chemical Name:Ertapenem Impurity 10
- CAS:357154-27-9
- MF:C22H27N3O8S
- Structure:
- Chemical Name:loteprednol Impurity 8
- CAS:207670-54-0
- MF:C24H29ClO7
- Structure:
- Chemical Name:Nimodipine Impurity 4
- CAS:74936-69-9
- MF:C18H20N2O6
- Structure:
- Chemical Name:Paroxetine Impurity 45
- CAS:1396174-70-1
- MF:C19H20FNO3
- Structure:
- Chemical Name:Tazobactam Impurity 5
- CAS:115546-67-3
- MF:C21H20ClNO3S
- Structure:
- Chemical Name:Tigecycline Impurity 2
- CAS:1422262-97-2
- MF:C29H39N5O8
- Chemical Name:Empagliflozin Impurity 34
- CAS:
- MF:
- Structure:
- Chemical Name:Sugammadex Impurity 22
- CAS:2412952-94-2
- MF:C72H113NaO48S8
- Structure:
- Chemical Name:Febuxostat
- CAS:1312815-36-3
- MF:C20H25NO4S
- Structure:
- Chemical Name:Itraconazole Impurity 34
- CAS:103661-14-9
- MF:C14H15Cl2N3O5S
- Structure:
- Chemical Name:Lansoprazole Impurity 34
- CAS:1357726-93-2
- MF:C7H8N2O3
- Structure:
- Chemical Name:Meloxicam Impurity 1 HCl
- CAS:929568-25-2
- MF:C4H7ClN2O
- Structure:
- Chemical Name:Palonosetron Impurity 11
- CAS:2216753-67-0
- MF:C18H24N2O
- Structure:
- Chemical Name:Dapagliflozin Impurity 10
- CAS:461432-27-9
- MF:C21H25ClO7
- Structure:
- Chemical Name:Levetiracetam impurity 2
- CAS:1341459-52-6
- MF:C8H17N3O2
- Structure:
- Chemical Name:(S)-5-chloro-N-(3-(5-chlorothiophene-2-carboxamido)-2- hydroxypropyl)-N-(4-(3-oxomorpholino)phenyl)thiophene-2- carboxamide
- CAS:2204368-63-6
- MF:C23H21Cl2N3O5S2
- Structure:
- Chemical Name:Ezetimibe Impurity 38
- CAS:1701462-59-0
- MF:C45H58F2N2O5Si2
- Structure:
- Chemical Name:Indapamide Impurity F
- CAS:62574-66-7
- MF:C7H3Cl3O3S
- Structure:
- Chemical Name:Moxifloxacin Impurity 38
- CAS:1262758-66-6
- MF:C21H24FN3O5
- Structure:
- Chemical Name:Nimodipine Impurity 3
- CAS:101072-61-1
- MF:C11H9NO5
- Chemical Name:Pitavastatin Impurity 40
- CAS:
- MF:
- Chemical Name:Ritonavir EP Impurity R
- CAS:
- MF:
- Structure:
- Chemical Name:Ticagrelor Impurity 68
- CAS:1643378-46-4
- MF:C23H29FN6O4S
- Chemical Name:Tofacitinib Impurity 70
- CAS:
- MF:
- Chemical Name:Afatinib Impurity 22
- CAS:
- MF:
- Chemical Name:Amifostine Impurity 6
- CAS:
- MF:
- Chemical Name:Apixaban Impurity 33
- CAS:
- MF:
- Chemical Name:Aztreonam Impurity 6
- CAS:
- MF:
- Structure:
- Chemical Name:Clarithromycin Impurity EP G
- CAS:107216-09-1
- MF:C39H72N2O13
- Chemical Name:Dapagliflozin Impurity 32
- CAS:
- MF:
- Structure:
- Chemical Name:Doxofylline Impurity 7
- CAS:43135-57-5
- MF:C13H20N4O4
- Chemical Name:Erlotinib Impurity 55
- CAS:
- MF:
- Chemical Name:Etoposide Impurity 1
- CAS:
- MF:
- Chemical Name:Etoposide Impurity 6
- CAS:
- MF:
- Chemical Name:Olaparib Impurity 34
- CAS:2795135-26-9
- MF:
- Structure:
- Chemical Name:Oseltamivir Impurity 15
- CAS:2254819-34-4
- MF:C22H36N2O4
- Chemical Name:Oseltamivir Impurity 27
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 20
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 20
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 9
- CAS:
- MF:
- Structure:
- Chemical Name:Verapamil Impurity N
- CAS:2086274-75-9
- MF:C33H47N3O4
- Structure:
- Chemical Name:Ergoline-8-carboxylic acid, 2-bromo-9,10-didehydro-6-methyl-, (8β)-
- CAS:478-83-1
- MF:C16H15BrN2O2
- Chemical Name:Adefovir Impurity 6
- CAS:
- MF:
- Chemical Name:Apremilast Impurity QY
- CAS:
- MF:
- Chemical Name:Dextrorotation lansoprazole Impurity J
- CAS:
- MF:
- Chemical Name:Dextrorotation lansoprazole-N-oxide
- CAS:
- MF:
- Chemical Name:lansoprazole Impurity 23
- CAS:
- MF:
- Chemical Name:lansoprazole Impurity 29
- CAS:
- MF:
- Structure:
- Chemical Name:Loratadine Impurity L
- CAS:
- MF:C22H23ClN2O2
- Chemical Name:meta-dyhydroxy Sugammadex sodium Impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:Olanzapine impurity R
- CAS:
- MF:C17H20N4S
- Chemical Name:Palbociclib Impurity 33
- CAS:
- MF:
- Chemical Name:Pramipexole Related Impurity 1
- CAS:
- MF:
- Chemical Name:Ropivacaine Impurity 37
- CAS:
- MF:
- Chemical Name:Ropivacaine Impurity 42
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Org197339-1 Impurity
- CAS:
- MF:
- Structure:
- Chemical Name:Fludarabine EP impurity G
- CAS:548774-56-7
- MF:C10H12ClFN5O6P
- Structure:
- Chemical Name:Sitagliptin Impurity 12
- CAS:1803026-54-1
- MF:C16H12F6N4O
- Chemical Name:Afatinib impurity 30
- CAS:
- MF:
- Structure:
- Chemical Name:Avibactam Impurity 45
- CAS:2064219-20-9
- MF:C23H46N4O6S
- Structure:
- Chemical Name:Butyphthalide impurity 44
- CAS:952413-01-3
- MF:C13H18O3
- Chemical Name:Cabozantinib impurity 24
- CAS:
- MF:
- Structure:
- Chemical Name:Celecoxib Impurity 18
- CAS:2271123-54-5
- MF:C11H9F3O2
- Chemical Name:Dapoxetine impurity 22
- CAS:
- MF:
- Chemical Name:Febuxostat Impurity 85
- CAS:
- MF: