24246-07-9

Methyl 2-(5-oxo-1-phenyl-4H-pyrazol-3-yl)acetate methyl 2-(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)acetate 1H-Pyrazole-3-acetic acid, 4,5-dihydro-5-oxo-1-phenyl-, methyl ester (5-Oxo-1-phenyl-4,5-dihydro-1H-pyrazol-3-yl)-acetic acid methyl ester