3-(p-Sulfonamidphenyl)-5-methylhydantoin [German] 4-(4-Methyl-2,5-dioxo-1-imidazolidinyl)benzenesulfonamide 65513-55-5 BRN 0821523 Benzenesulfonamide, 4-(4-methyl-2,5-dioxo-1-imidazolidinyl)- GS 300