Synonyms: 1H-pyrazole-3-carboxylic acid, 5-methyl-, 2-[(1E)-(2,4,5-trimethoxyphenyl)methylene]hydrazide;1H-Pyrazole-5-carboxylic acid, 3-methyl-, 2-[(1E)-(2,4,5-trimethoxyphenyl)methylene]hydrazide;3-Methyl-N'-[(E)-(2,4,5-trimethoxyphenyl)methylene]-1H-pyrazole-5-carbohydrazide;5-Methyl-N'-[(E)-(2,4,5-trimethoxyphenyl)methylene]-1H-pyrazole-3-carbohydrazide