53377-63-2
11-methyl-7-oxododec-10-enoic acid
→
53377-64-3
7,10-dioxodecanoic acid
53377-62-1
diethyl 2-(5-methylhex-4-enoyl)heptanedioate
14660-52-7
5-溴戊酸乙酯
542-28-9
delta-戊内酯