Dehydro Olmesartan Catalogue O264661 CAS 172875-98-8 M.W 428.49 M.F C24H24N6O2 Specifications FAQs 1-((2'-(2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-4-(prop-1-en-2-yl)-2-propyl-1H-imidazole-5-carboxylic acid