112997-67-8 BUTANOIC ACID, 4-((4-(AMINOSULFONYL)PHENYL)AMINO)-4-OXO-, compd. with 2-(DIETHYL Butanoic acid, 4-((4-(aminosulfonyl)phenyl)amino)-4-oxo-, compd. with 2-(diethylamino)ethanol (1:1)