2-Butenamide, N-((4-aminophenyl)sulfonyl)-3-methyl-, monosodium salt 78739-59-0 EINECS 278-979-0 N(sup 1)-Dimethylacrylylsulfanilamide sodium salt Sodium N-((4-aminophenyl)sulphonyl)-3-methylbut-2-enamide Sulfanilamide, N(sup 1)-3,3-dimethylacrylyl-, monosodium salt