591-78-6
2-己酮
→
68676-80-2
4-oxooct-2-enoic acid
102540-71-6
辛酸, 2,4-二羰基-, 乙基酯
27970-69-0
145653-56-1
2-Octenoic acid, 4-oxo-, ethyl ester, (2E)-
18338-88-0
5-亚丁基呋喃-2(5H)-酮
2497-14-5
4-oxo-oct-2t-enal