72595-17-6 Benzenamine, 4-((4-nitro-2-cyanophenyl)azo)-3-(acetylamino)-N-(2-(methoxycarbonyl)ethyl)-N-ethyl- EINECS 276-727-4 Methyl N-(3-(acetylamino)-4-((2-cyano-4-nitrophenyl)azo)phenyl)-N-ethyl-beta-alaninate beta-Alanine, N-(3-(acetylamino)-4-((2-cyano-4-nitrophenyl)azo)phenyl)-N-ethyl-, methyl ester