Olmesartan Medoxomil EP Impurity B Catalogue O264622 CAS 849206-43-5 M.W 428.50 M.F C24H24N6O2 Specifications FAQs 3-((2'-(1H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-6,6-dimethyl-2-propyl-3,6-dihydro-4H-furo[3,4-d]imidazol-4-one