Synonyms: 1-Cyclohexene-1-carboxylic acid, 4-(1,5-dimethyl-3-oxohexyl)-, methyl ester, (1S,4S)-(-)-;(4S)-4-[(1S)-1,5-Dimethyl-3-oxohexyl]-1-cyclohexene-1-carboxylic acid methyl ester;(4S)-4β-[(1S)-1,5-Dimethyl-3-oxohexyl]-1-cyclohexene-1-carboxylic acid methyl ester;[4S,(-)]-4β-[(1S)-1,5-Dimethyl-3-oxohexyl]-1-cyclohexene-1-carboxylic acid methyl ester