1 6AS (2z,4e)-5-[(1s)-3-(hexylsulfanyl)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid 1.000 2 A8S (2z,4e)-5-[(1s)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid 0.731 3 A9S (2z,4e)-5-[(1r)-1-hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en-1-yl]-3-methylpenta-2,4-dienoic acid 0.731