英文别名:
Ethyl 2-(5-oxo-4,5-dihydro-1H-pyrazol-3-yl)acetate;ETHYL (5-OXO-4,5-DIHYDRO-1H-PYRAZOL-3-YL)ACETATE;4,5-dihydro-5-oxo-1H-Pyrazole-3-acetic acid ethyl ester;ethyl 2-(4,5-dihydro-5-oxo-1H-pyrazol-3-yl)acetate;1H-Pyrazole-3-acetic acid, 4,5-dihydro-5-oxo-, ethyl ester