alpha-Acetylbutyrolactone
alpha-Bromo-gamma-butyrolactone
4-Butyl-gamma-butyrolactone
Butyrolactone
beta-Butyrolactone
Caprolactone
4,4-Dimethylbutyrolactone
5,6-Dimethyltetrahydropyran-2-one, (E)-
delta-Dodecalactone
2(3H)-Furanone, 5-ethenyIdihydro-5-methyl-
2(3H)-Furanone, 5-hexyldihydro-
gamma-Heptalactone
4-Hexanolide
alpha-Methyl-gamma-butyrolactone
gamma-Nonalactone
Pivalolactone
beta-Propiolactone
gamma-Undecalactone
delta-Undecalactone
gamma-Valerolactone