1H-Pyrazole-1-carboxamide,4-[(2-ethoxyphenyl)hydrazono]-4,5-dihydro-3-methyl-5-oxo- (9CI);2-Pyrazoline-1-carboxamide, 3-methyl-4,5-dioxo-, 4-[(o-ethoxyphenyl)hydrazone](8CI); 1-Carbamoyl-3-methyl-2-pyrazoline-4,5-dione 4-(2-ethoxyphenylhydrazone)
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