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Pharmaceutical Impurity Reference Standards
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- Structure:
- Chemical Name:RAC (CIS/TRANS) DONEPEZIL N-OXIDE
- CAS:120013-84-5
- MF:C24H29NO4
- Structure:
- Chemical Name:5-Carboxy-2'-deoxyuridine
- CAS:14599-46-3
- MF:C10H12N2O7
- Structure:
- Chemical Name:N-METHYL-3-CHLORO-3-PHENYL PROPYLAMINE HCL
- CAS:128036-32-8
- MF:C10H15Cl2N
- Structure:
- Chemical Name:2,4,5-TRIFLUORO-3-METHOXYBENZOIC ACID
- CAS:11281-65-5
- MF:C8H5F3O3
- Structure:
- Chemical Name:METHYL TRIPHENYLMETHYL ETHER
- CAS:596-31-6
- MF:C20H18O
- Structure:
- Chemical Name:(-)-menthyl benzoate
- CAS:6284-35-1
- MF:C17H24O2
- Structure:
- Chemical Name:4,5-Dibromo-1,2-benzenediol
- CAS:2563-26-0
- MF:C6H4Br2O2
- Structure:
- Chemical Name:4-PYRIDINECARBOXIMIDIC ACID, HYDRAZIDE
- CAS:89830-71-7
- MF:C6H8N4
- Structure:
- Chemical Name:2-PENTANOYLBENZOIC ACID
- CAS:550-37-8
- MF:C12H14O3
- Structure:
- Chemical Name:2-[4-(3-CHLORO-2-HYDROXYPROPOXY)PHENYL]ACETAMIDE
- CAS:115538-83-5
- MF:C11H14ClNO3
- Structure:
- Chemical Name:Ibuprofen Alcohol
- CAS:36039-36-8
- MF:C13H20O
- Structure:
- Chemical Name:1,1-BIS-(4-ISOBUTYLPHENYL)ETHANE
- CAS:102120-87-6
- MF:C22H30
- Chemical Name:Sugammadex sodium Impurity 52
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 43
- CAS:
- MF:
- Chemical Name:Sugammadex sodium Impurity 39
- CAS:
- MF:
- Structure:
- Chemical Name:Apixaban Impurity 52
- CAS:1620494-31-6
- MF:C31H29N5O4
- Chemical Name:Cefazolin Impurity EP-J
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 41
- CAS:
- MF:
- Chemical Name:Cabozantinib impurity 67
- CAS:
- MF:
- Structure:
- Chemical Name:ethyl 6-bromo-2-(bromomethyl)-5-hydroxy-1-methyl-1H-indole-3-carboxylate
- CAS:149246-36-6
- MF:C13H13Br2NO3
- Chemical Name:Dapoxetine impurity 50
- CAS:
- MF:
- Chemical Name:Doxofylline Impurity 18
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 63
- CAS:
- MF:
- Chemical Name:Dapoxetine impurity 57
- CAS:
- MF:
- Structure:
- Chemical Name:Bosutinib Impurity 2 (N-Desmethyl Bosutinib)
- CAS:380843-81-2
- MF:C25H27Cl2N5O3
- Structure:
- Chemical Name:Benzamide, 2,5-dichloro-N-(3-methylbutyl)-
- CAS:349086-08-4
- MF:C12H15Cl2NO
- Structure:
- Chemical Name:BECLOTIAMINE
- CAS:13471-78-8
- MF:C12H16Cl2N4S
- Structure:
- Chemical Name:methyl 5-sulpho-o-anisate
- CAS:94134-07-3
- MF:C9H10O6S
- Structure:
- Chemical Name:2,4-dioxo-3-azaspiro[5.5]undecane-1,5-dicarbonitrile
- CAS:4355-15-1
- MF:C12H13N3O2
- Structure:
- Chemical Name:Sugammadex Impurity 12 Monomer（Org198958-2（RRT0.45））
- CAS:2412953-11-6
- MF:C72H112O49S8
- Structure:
- Chemical Name:Sulfamide, N-[5-phenyl-6-[2-(2-pyrimidinyloxy)ethoxy]-4-pyrimidinyl]-N'-propyl-
- CAS:2300968-85-6
- MF:C19H22N6O4S
- Structure:
- Chemical Name:Acetamide, 2-chloro-N-(2-chloroacetyl)-N-(2,6-dimethylphenyl)-
- CAS:112843-97-7
- MF:C12H13Cl2NO2
- Structure:
- Chemical Name:1-[2-cyano-1-(cyanoimino)ethyl]piperidine
- CAS:56488-00-7
- MF:C9H12N4
- Chemical Name:Oseltamivir Impurity 99
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 92
- CAS:
- MF:
- Chemical Name:Oseltamivir Impurity 76
- CAS:
- MF:
- Chemical Name:Regorafenib Impurity ABCDEFGHJKL
- CAS:
- MF:
- Structure:
- Chemical Name:Benzonitrile, 4-[2-[(1R,2S)-2-(2,5-difluorophenyl)-2-hydroxy-1-methyl-3-(1H-1,2,4-triazol-1-yl)propyl]-4-thiazolyl]-, rel-
- CAS:1797905-83-9
- MF:C22H17F2N5OS
- Structure:
- Chemical Name:3,4,5-Piperidinetriol, 1-(2-hydroxyethyl)-2-(hydroxymethyl)-, (2S,3S,4R,5S)-
- CAS:1550201-56-3
- MF:C8H17NO5
- Chemical Name:1-(2,4-difluoro-6-hydroxyphenyl)prop-2-en-1-one
- CAS:
- MF:
- Structure:
- Chemical Name:1-(4-fluorophenyl)-1,3-dihydro-1-[3-(methylamino)propyl]isobenzofuran-5-carbonitrile
- CAS:62498-67-3
- MF:C19H19FN2O
- Structure:
- Chemical Name:17,21-Dihydroxy-16α-methylpregna-1,4,9(11)-triene-3,20-dione 21-Acetate
- CAS:10106-41-9
- MF:C24H30O5
- Structure:
- Chemical Name:2-chloro-N-(2,4-dimethylphenyl)acetamide
- CAS:39106-10-0
- MF:C10H12ClNO
- Structure:
- Chemical Name:sodium [2S-(2alpha,5alpha,6beta)]-6-bromo-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
- CAS:73335-78-1
- MF:C8H9BrNNaO3S
- Structure:
- Chemical Name:8-chloro-3,7-dihydro-1,3,7-trimethyl-1H-purine-2,6-dione
- CAS:4921-49-7
- MF:C8H9ClN4O2
- Structure:
- Chemical Name:2-amino-1-(3,4-dihydroxyphenyl)ethan-1-one
- CAS:499-61-6
- MF:C8H9NO3
- Structure:
- Chemical Name:Benzoic acid, 5-(aminosulfonyl)-2-[[[4-methoxy-3-(methoxycarbonyl)phenyl]sulfonyl]oxy]-, methyl ester
- CAS:2267259-70-9
- MF:C17H17NO10S2
- Structure:
- Chemical Name:7H-Pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid, 9,10-difluoro-2,3-dihydro-2-methyl-7-oxo-, (S)- (9CI)
- CAS:129798-65-8
- MF:C13H9F2NO4
- Chemical Name:Sitagliptin EP Impurity 1
- CAS:
- MF:
- Structure:
- Chemical Name:4,6-Methano-1,3,2-benzodioxaborole-2-methanamine, hexahydro-3a,8,8-trimethyl-α-(2-methylpropyl)-, (αS,3aR,4R,6R,7aS)-, 2,2,2-trifluoroacetate (1:1)
- CAS:2363753-29-9
- MF:C17H29BF3NO4
- Chemical Name:Beprostatin impurity 3
- CAS:
- MF:
- Structure:
- Chemical Name:endo-(±)-8-aza-8-isopropylbicyclo[3.2.1]oct-3-yl (hydroxymethyl)phenylacetate
- CAS:22235-81-0
- MF:C19H27NO3
- Structure:
- Chemical Name:8,11-Dioxa-3,5-diazadodecanoic acid, 12-(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)-10-(hydroxymethyl)-2,6-bis(1-methylethyl)-7-oxo-, 2-[(2-amino-1,6-dihydro-6-oxo-9H-purin-9-yl)methoxy]-3-hydroxypropyl ester, (2S,6S)-
- CAS:1654737-35-5
- MF:C29H44N12O10
- Structure:
- Chemical Name:(1R,3r,5S,8R)-8-butyl-3-(((S)-3-hydroxy-2-phenylpropanoyl)oxy)-8-methyl-8-azabicyclo[3.2.1]octan-8-ium
- CAS:99571-66-1
- MF:C21H32NO3+
- Structure:
- Chemical Name:1,3-dihydro-1-oxoisobenzofuran-5-carboxamide
- CAS:85118-25-8
- MF:C9H7NO3
- Structure:
- Chemical Name:(R)-8-(3-aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-2-((4-methylquinazolin-2-yl)methoxy)-3,7-dihydro-6H-purin-6-one
- CAS:2446799-72-8
- MF:C25H28N8O2
- Chemical Name:Troxipide Impurity 8
- CAS:
- MF:
- Chemical Name:Peramivir Impurity 12/11
- CAS:
- MF:
- Chemical Name:Ceftazidime Impurity IMPA
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 82
- CAS:
- MF:
- Chemical Name:Terbutaline EP Impurity B Complete Set
- CAS:
- MF:
- Chemical Name:Peramivir Intermediate impurity 2
- CAS:
- MF:
- Chemical Name:Cetrorelix Impurity 8 (+L-Pro)
- CAS:
- MF:
- Chemical Name:Peramivir Intermediate Impurity 44
- CAS:
- MF:
- Chemical Name:Peramivir Hydroxy Isomeric Impurity
- CAS:
- MF:
- Chemical Name:Nintedanib impurity F drops
- CAS:
- MF:
- Chemical Name:Favipiravir Impurities 1-19
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity 138X
- CAS:
- MF:
- Chemical Name:Apremilast Impurity 999
- CAS:
- MF:
- Chemical Name:Pranoprofen Impurity C
- CAS:
- MF:
- Chemical Name:Doxylamine Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:Phenoxymethylpenicillin Potassium EP Impurity F
- CAS:2714805-53-3
- MF:C15H20N2O4S
- Chemical Name:Methylprednisolone EP Impurity D1
- CAS:
- MF:
- Chemical Name:Nirmatrelvir Impurity 13
- CAS:
- MF:
- Structure:
- Chemical Name:γ-Cyclodextrin, 6A,6B,6C,6D,6E,6F,6G-heptabromo-6A,6B,6C,6D,6E,6F,6G-heptadeoxy-
- CAS:2458187-21-6
- MF:C48H73Br7O33
- Structure:
- Chemical Name:2-Pyridinecarboxamide, 4-hydroxy-N-methyl- (9CI)
- CAS:611226-36-9
- MF:C7H8N2O2
- Structure:
- Chemical Name:2-Pyridinemethanol, 4-hydroxy-3,5-dimethyl- (9CI)
- CAS:727375-13-5
- MF:C8H11NO2
- Chemical Name:Bumetanide Impurity 22
- CAS:
- MF:
- Chemical Name:Rocuronium Bromide Impurity 32 、33
- CAS:
- MF:
- Chemical Name:Flucloxacillin Sodium Impurity X
- CAS:
- MF:
- Chemical Name:Pitavastatin Impurity 98
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 29
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 24
- CAS:
- MF:
- Chemical Name:Perospirone Impurity 7
- CAS:1002359-81-0
- MF:
- Chemical Name:Paxlovid Impurity 17
- CAS:
- MF:
- Chemical Name:Related impurities of fluoxetine sodium 19
- CAS:
- MF:
- Chemical Name:Fondaparinux sodium impurity 16
- CAS:
- MF:
- Chemical Name:Fondaparinux Sodium Impurity 11
- CAS:
- MF:
- Chemical Name:Oxacillin Impurity E
- CAS:
- MF:
- Structure:
- Chemical Name:AZOBENZENE-3-CARBOXYLICACID
- CAS:14474-22-7
- MF:C13H10N2O2
- Chemical Name:Bosutinib Impurity 40
- CAS:
- MF:
- Chemical Name:Ticagrelor Impurity J&K
- CAS:
- MF:
- Chemical Name:Olodaterol Impurity 24
- CAS:
- MF:
- Chemical Name:Miglitol Isomer ImpurityB
- CAS:
- MF:
- Chemical Name:43,50-Dicarboxy-cyanoco balamin
- CAS:
- MF:
- Structure:
- Chemical Name:(1R,4S) Sertraline Hydrochloride
- CAS:79896-32-5
- MF:C17H18Cl3N