Synonyms: 2,2-Dimethyl-6-carbobutoxy-2,3-dihydro-4-pyrone;2-Carbo-n-butoxy-6,6-dimethyl-5,6-dihydro-1,4-pyrone; BMOO; Butopyronoxyl;Butyl 3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylate; Butyl mesityloxide oxalate; Indalone; NSC 404420; NSC 5750; n-Butyl ester of3,4-dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic acid; a,a-Dimethyl-a'-carbobutoxy-dihydro-g-pyrone