4-amino-N-(3-oxo-3,4-dihydropyrazin-2-yl)benzenesulfonamide;4-Amino-?N-?(3,?4-?dihydro-?3-?oxo-?2-?pyrazinyl)?benzenesulfonamide
4-amino-N-(3-oxo-3,4-dihydropyrazin-2-yl)benzenesulfonamide;4-Amino-?N-?(3,?4-?dihydro-?3-?oxo-?2-?pyrazinyl)?benzenesulfonamide