3-Acetylamino-4-(2-chloro-4-nitrophenylazo)-N,N-bis(beta-ethoxycarbonylethyl)aniline 68134-40-7 EINECS 268-752-4 Ethyl N-(3-(acetylamino)-4-((2-chloro-4-nitrophenyl)azo)phenyl)-N-(3-ethoxy-3-oxopropyl)-beta-alaninate beta-Alanine, N-(3-(acetylamino)-4-((2-chloro-4-nitrophenyl)azo)phenyl)-N-(3-ethoxy-3-oxopropyl)-, ethyl ester