Acetoaceticacid, ethyl ester, (2,4-dinitrophenyl)hydrazone (6CI,7CI); Acetoacetic acid, ethylester, 3-[(2,4-dinitrophenyl)hydrazone] (8CI); Butanoic acid,3-[(2,4-dinitrophenyl)hydrazono]-, ethyl ester (9CI); NSC 525181
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