10514-61-1
Diethyl 1-methyl-1h-pyrazole-4,5-dicarboxylate
→
~78%
81303-65-3
4-(Ethoxycarbonyl)-1-methyl-1H-pyrazole-5-carboxylic acid 1-甲基-5-羧基-1H吡唑-4-甲酸乙酯
130187-88-1