Synonyms: Valericacid, 4-hydroxy-4-methyl-, lactone (6CI);Valeric acid, 4-hydroxy-4-methyl-, g-lactone (7CI);4,4-Dimethyl-4-butanolide;4,4-Dimethylbutyrolactone;4-Methyl-4-hydroxypentanoic acid lactone;4-Methylpentan-4-olide;5,5-Dimethyldihydrofuran-2(3H)-one;5,5-Dimethyldihydrofuran-2-one;Dihydro-5,5-dimethyl-2(3H)-furanone;Isocaprolactone;NSC 128078;NSC 221122;Tetrahydro-5,5-dimethyl-2-furanone;γ,γ-Dimethyl-g-butyrolactone;γ,γ-Dimethylbutyrolactone;γ,γ-Dimethylvalerolactone;γ-Isocaprolactone;γ-Methyl-g-valerolactone;2(3H)-Furanone, dihydro-5,5-dimethyl-;5,5-Dimethyldihydrofuran-2(3H)-one;Tetrahydro-5,5-dimethyl-2-furanone;