Catalog division
Impurity Reference Standards
Pharmacopoeial impurities, nitrosamines, metabolites, labelled internal standards and API working standards, each backed by analytical data for method development and QC.
4-((tert-Butoxycarbonyl)amino)piperidine-4-carboxylic acid
- CAS
- 252720-31-3
- Formula
- C11H20N2O4
- MW
- 244.29 g/mol
ZX-023739
4-([1,1'-Biphenyl]-4-yl(hydroxy)(phenyl)methyl)-1-(2-(benzyloxy)ethyl)quinuclidin-1-ium Bromide
- CAS
- 2253743-40-5
- Formula
- C35H38BrNO2
- MW
- 584.6 g/mol
ZX-027464
4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylaniline
- CAS
- 937263-71-3
- Formula
- C13H12N4O
- MW
- 240.26 g/mol
ZX-032719
4-(1-(2,4-Diaminopteridin-6-yl)pent-4-yn-2-yl)benzoic Acid
- CAS
- 146464-93-9
- Formula
- C18H16N6O2
- MW
- 348.4 g/mol
ZX-026473
4-(1-Methoxy-1-methylethyl)-2-propyl-1H-imidazole-5-carboxylic Acid Ethyl Ester
- CAS
- 1092980-84-1
- Formula
- C13H22N2O3
- MW
- 254.33 g/mol
ZX-022349
4-(1-Methoxy-2-(methylamino)ethyl)benzene-1,2-diol
- CAS
- 2947-02-6
- Formula
- C10H15NO3
- MW
- 197.23 g/mol
ZX-023159
4-(1-Methyl-5-nitro-1H-benzo[d]imidazol-2-yl)butanoic Acid
- CAS
- 31349-48-1
- Formula
- C12H13N3O4
- MW
- 263.25 g/mol
ZX-028217
4-(1-Methylpyridin-1-ium-4-yl) thiazole-2-thiolate
- CAS
- 1427207-46-2
- Formula
- C9H8N2S2
- MW
- 208.3 g/mol
ZX-023849
4-(1,1-Dimethyl-2-oxo-1,2-dihydro-3H-benzo[e]indol-3-yl)butane-1-sulfonic Acid
- CAS
- 906772-02-9
- Formula
- C18H21NO4S
- MW
- 347.4 g/mol
ZX-029943
4-(1H-1,2,4-Triazol-l-yl Methyl) Phenyl Hydrazine Dihydrochloride
- CAS
- 212248-62-9
- Formula
- C9H12ClN5
- MW
- 225.68 g/mol
ZX-026773
4-(2-((2S,3R)-3-(2,5-Difluorophenyl)-3-hydroxy-4-(1H-1,2,4-triazol-1-yl)butan-2-yl)thiazol-4-yl)benzonitrile
- CAS
- 1176988-44-5
- Formula
- C22H17F2N5OS
- MW
- 437.5 g/mol
ZX-025167
4-(2-((4-(4-Methoxyphenyl)butan-2-yl)amino)ethyl)benzene-1,2-diol Hydrochloride
- CAS
- 82473-36-7
- Formula
- C19H26ClNO3
- MW
- 351.9 g/mol
ZX-029035
4-(2-((4-Acetamidophenyl)amino)pyrimidin-4-yl)-N-(cyanomethyl)benzamide
- CAS
- 1841094-22-1
- Formula
- C21H18N6O2
- MW
- 386.4 g/mol
ZX-030682
4-(2-((4-Morpholinophenyl)amino)pyrimidin-4-yl)benzoic Acid
- CAS
- 945749-71-3
- Formula
- C21H20N4O3
- MW
- 376.4 g/mol
ZX-025684
4-(2-(2,2,2-Trifluoroacetyl)hydrazinyl)benzenesulfonamide
- CAS
- 915280-81-8
- Formula
- C8H8F3N3O3S
- MW
- 283.23 g/mol
ZX-028539
4-(2-(6-(4-Carboxypiperidin-1-yl)-5-chloronicotinamido)-4-(4-chlorothiophen-2-yl)thiazol-5-yl)-1-cyclohexylpiperazine 1-oxide
- CAS
- 2681355-40-6
- Formula
- C29H34Cl2N6O4S2
- MW
- 665.7 g/mol
ZX-028145
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