N-(Methylsulfonyl)-N',N'-bis[2-(acetyloxy)ethyl]-6-[[4-[(2-chloro-4-nitrophenyl)azo]-2,5-dimethoxyphenyl]azo]-1,3-benzenediamine

2-[2-acetyloxyethyl-[4-[4-(2-chloro-4-nitro-phenyl)diazenyl-2,5-dimethoxy-phenyl]diazenyl-3-methanesulfonamido-phenyl]amino]ethyl acetate