Azilsartan Impurity O Catalogue A195635 CAS 2171316-29-1 M.W 401.42 M.F C23H19N3O4 Specifications FAQs methyl 3-((2'-carbamoyl-[1,1'-biphenyl]-4-yl)methyl)-2-oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carboxylate
