2-((2E)-2-{2-[(2-Tert-butyl-6-methylphenyl)amino]-1-[(3-hydroxy-6-nitroquinoxalin-2-yl)methyl]-2-oxoethylidene}hydrazino)-N,N,N-trimethyl-2-oxoethanaminium chloride AIDS-016029 AIDS016029 NSC649586