2,2'-[[3-Chloro-4-[[2-(methylsulfonyl)-4-nitrophenyl]azo]phenyl]imino]diethyl diacetate

2,2'-[[3-chloro-4-[[2-(methylsulphonyl)-4-nitrophenyl]azo]phenyl]imino]diethyl diacetate ; 2,2'-[[3-chloro-4-[[2-(methylsulfonyl)-4-nitrophenyl]azo]phenyl]imino]bisethanol diacetate ; ethanol,2,2'-[[3-chloro-4-[2-[2-(methylsulfonyl)-4-nitrophenyl]diazenyl]phenyl]imino]bis-,1,1'-diacetate ; ethanol,2,2'-[[3-chloro-4-[[2-(methylsulfonyl)-4-nitrophenyl]azo]phenyl]imino]bis-,diacetate (ester) (9ci) ; ethanol,2,2'-[[3-chloro-4-[[2-(methylsulfonyl)-4-nitrophenyl]azo]phenyl]imino]di-,diacetate (ester) (8ci)