Lactone

A cyclic ester

Types

$\alpha$-lactone

C1(=O)OC1

$\beta$-lactone

C1C(=O)OC1

$\gamma$-lactone

C1CC(=O)OC1

$\delta$-lactone

C1CCC(=O)OC1

$\epsilon$-lactone

C1CCCC(=O)OC1