The chemical FK 3311 has a designated molecular formula of C15H13F2NO4S and a molecular weight of 341.329 g/mol. Synonyms may include: 4'-Acetyl-2'-(2,4-difluorophenoxy)methanesulfonanilide, N-(4-Acetyl-2-(2,4-difluorophenoxy)phenyl)methanesulfonamide, FK-3311 (ChemID).