The chemical Ibutilide fumarate has a designated molecular formula of C44H76N4O10S2 and a molecular weight of 885.230 g/mol. Synonyms may include: U 70226E, Corvert, (+-)-4'-(4-(Ethylheptylamino)-1-hydroxybutyl)methanesulfoanilide (E)-2-butenedioate (2:1), (+-)-N-(4-(4-(Ethylheptylamino)-1-hydroxybutyl)phenyl)methanesulfonamide (E)-butenedioate, UNII-9L5X4M5L6I, HSDB 7926 (ChemID).