706819-80-9
5-ethoxy-1-phenyl-1H-pyrazole-4-carboxylic acid ethyl ester
→
~72%
876-92-6
1-苯基-1H-吡唑-5(4h)-酮
88585-32-4
3-氧代-2-苯基-2,3-二氢-1H-吡唑-4-羧酸乙酯
~38%
25115-90-6
1H-Pyrazole-4-carboxylic acid, 4,5-dihydro-5-oxo-1-phenyl-, ethyl ester
~36%