The chemical Olmesartan has a designated molecular formula of C24H26N6O3 and a molecular weight of 446.511 g/mol. Synonyms may include: Benicar, Votum, Olmetec, CS-866, CS 866, UNII-8W1IQP3U10, HSDB 8214, EC 646-413-5 (ChemID). Olmesartan has been assigned a MeSH pharmacological action of: Angiotensin II Type 1 Receptor Blockers.