Synonyms: 1,3-Isobenzofurandione,3a,4,7,7a-tetrahydro-5-methyl-4-(3-methyl-2-butenyl)- (9CI);4-Cyclohexene-1,2-dicarboxylic anhydride, 4-methyl-3-(3-methyl-2-butenyl)-(8CI); 1,3-Isobenzofurandione,3a,4,7,7a-tetrahydro-5-methyl-4-(3-methyl-2-butenyl)-, (E)-; Epicure YH 306;Epikure YH 306; YH 306