5932-27-4
3-吡唑甲酸乙酯
→
~52%
221300-34-1
ethyl 4-fluoro-1H-pyrazole-5-carboxylate
623-47-2
丙炔酸乙酯
881668-91-3
4-fluoropyrazole-3-carboxylic acid
1621-91-6
吡唑-3-甲酸