64190-48-3
DL-3-甲基-Γ-丁内酯
+
931-59-9
苯次磺酰氯
→
54145-05-0
4-methyl-3-phenylsulfanyloxolan-2-one
96540-35-1
96540-39-5
ethyl 4-methyl-2-oxooxolane-3-carboxylate
96540-43-1
3-Furancarboxylic acid, tetrahydro-4-methyl-2-oxo-