1H-Isoindole-1,3(2H)-dione, 2-(2-(ethyl(4-((4-nitrophenyl)azo)phenyl)amino)ethyl)- 65208-25-5 EINECS 265-626-0 N-(2-(Ethyl(4-((4-nitrophenyl)azo)phenyl)amino)ethyl)phthalimide