4-methylpent-2-ene-1,4-diol

5-乙氧基-2(5H)-呋喃酮

5,5-dimethyl-4-(phenylsulfinyl)dihydrofuran-2(3H)-one

Pentanoic acid, 4-oxo-3-(phenylthio)-

4-羟基-4-甲基-2-戊酸