4-(4-Chloro-2,5-dioxo-3-ethyl-3-methyl-1-pyrrolidinyl)benzenesulfonamide 65116-25-8 BRN 1496490 Benzenesulfonamide, 4-(4-chloro-2,5-dioxo-3-ethyl-3-methyl-1-pyrrolidinyl)- PB 295