623-73-4
重氮乙酸乙酯
+
107-13-1
丙烯腈
→
~98%
67872-78-0
ethyl 5-cyano-4,5-dihydro-1H-pyrazole-3-carboxylate
81251-00-5
ethyl (E)-4-cyanobut-3-enoate
3999-56-2
ethyl (Z)-2-cyanocyclopropanecarboxylate
623-91-6
富马酸二乙酯
141-05-9
马来酸二乙酯