Synonyms: (2,6,6-Trimethyl-2-hydroxycyclohexylidene)aceticacid lactone;2,4,5,6,7,7a-Hexahydro-4,4,7a-trimethylbenzofuran-2-one;2-Hydroxy-2,6,6-trimethylcyclohexylidene-1-acetic acid lactone;4,5,7,7a-Tetrahydro-4,4,7a-trimethyl-2(6H)-benzofuranone;5,6,7,7a-Tetrahydro-4,4,7a-trimethyl-2(4H)-benzofuranone;5,8,7,7-Tetrahydro-4,4,7a-trimethyl-a-benzofuranone;9-Oxa-1,5,5-trimethylbicyclo[4.3.0]non-6-en-8-one;