2,2'-((4-((2-(Methylsulphonyl)-4-nitrophenyl)azo)-m-tolyl)imino)bisethyl diacetate 29426-52-6 EINECS 249-621-0 Ethanol, 2,2'-((3-methyl-4-((2-(methylsulfonyl)-4-nitrophenyl)azo)phenyl)imino)bis-, diacetate (ester) Ethanol, 2,2'-((4-((2-(methylsulfonyl)-4-nitrophenyl)azo)-m-tolyl)imino)di-, diacetate (ester)