The chemical Sonepiprazole has a designated molecular formula of C21H27N3O3S and a molecular weight of 401.525 g/mol. Synonyms may include: U-101387, Isochr-etpip-phso2NH2, 4-(4-(2-(Isochroman-1-yl)ethyl)piperazin-1-yl)benzenesulfonamide, UNII-O609V24217 (ChemID).