methyl N-[5-(acetylamino)-4-[(2,4-dinitrophenyl)azo]-2-methoxyphenyl]-N-(3-methoxy-3-oxopropyl)-beta-alaninate;-Alanine, N-[5-(acetylamino)-4-[(2, 4-dinitrophenyl)azo]-2-methoxyphenyl]-N-(3-methoxy -3-oxopropyl)-, methyl ester;3,3'-[[5-Acetylamino-4-(2,4-dinitrophenylazo)-2-methoxyphenyl]imino]dipropionic acid dimethyl ester
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