Tetrahydro-4,4-dimethyl-2H-pyran-2-one

(±)-β,β-Dimethyl-γ-hydroxymethyl-γ-butyrolactone

(±)-5-Hydroxymethyl-4,4-dimethyldihydro-2(3H)-furanone

BETA,BETA-DIMETHYL-GAMMA-(HYDROXYMETHYL)-GAMMA-BUTYROLACTONE)