542-28-9
delta-戊内酯
+
122-51-0
原甲酸三乙酯
→
53143-91-2
2,2-diethoxyoxane
13107-53-4
5-羟基戊酸乙酯
88696-56-4
ethyl 2-cyano-2-(oxan-2-ylidene)acetate
88696-57-5
2-cyano-2-(oxan-2-ylidene)acetamide
88696-58-6
7-oxo-2,3,4,6-tetrahydropyrano[3,2-c]pyridine-8-carbonitrile