4,6-Diamino-2-methylsulfonyl-5-pyrimidinesulfonamide 5-Pyrimidinesulfonamide, 4,6-diamino-2-(methylsulfonyl)- 5-Pyrimidinesulfonamide, 4,6-diamino-2-methylsulfonyl- 74039-23-9 NSC77524 WLN: T6N CNJ BSW1 DZ ESZW FZ