100-63-0
苯肼
+
87-13-8
乙氧基甲叉丙二酸二乙酯
→
~96%
88585-32-4
3-氧代-2-苯基-2,3-二氢-1H-吡唑-4-羧酸乙酯
49597-05-9
tetraethyl prop-1-ene-1,1,3,3-tetracarboxylate
5418-02-0
diethyl 2-[(phenylhydrazinylidene)methyl]propanedioate