2H-1-Benzopyran-8-sulfonamide, N-(((4-bromophenyl)amino)carbonyl)-4,5,7-trimethyl-2-oxo- 85302-37-0 N-(((4-Bromophenyl)amino)carbonyl)-4,5,7-trimethyl-2-oxo-2H-1-benzopyran-8-sulfonamide