73398-82-0 Propanoic acid, 3-((2-chloro-5-aminophenyl)imino)-3-((2,4,6-trichlorophenyl)hydrazono)-, ethyl ester Propanoic acid, 3-((5-amino-2-chlorophenyl)amino)-3-((2,4,6-trichlorophenyl)hydrazono)-, ethyl ester