AIDS-057681 AIDS057681 Imidazo[1,2-a]pyridinium, 1-methyl-2-[4-[(E)-[[2-[(2Z)-2-[[4-(1-methylimidazo[1,2-a]pyridinium-2-yl)phenyl]methylene]hydrazino]-1,2-dioxoethyl]hydrazono]methyl]phenyl]-, compd. with benzenesulfonic acid, 4-methyl-, ion(1-) (1:2) NSC657775