2,6,6-Trimethyl-2-cyclohexene-1,4-dione

2,6,6,-Trimethylcyclohex-2-ene-1,4-dione has a woody, musty sweet aroma.

clear yellow to orange liquid or low melting solid

Reported found among the volatile components in saffron and in cigarette smoke. Also reported found in saffron, cognac, black tea, green tea, microbial fermented tea, lemon balm, cooked shrimp, roasted shrimp, corn oil and lamb’s lettuce.

4-Oxoisophorone is one of the major components of saffron (Crocus sativus L.) and also found to be a product of degradation of carotenoids in paprika, tomato and marigold oleoresins.

ChEBI: 2,6,6-Trimethyl-2-cyclohexene-1,4-dione is a member of cyclohexenones.

2,6,6-Trimethyl-2-cyclohexene-1,4-dione is also known as 4-ketoisophorone and is the major component of saffron spice. It is a cyclic olefin and was reported as a product of the thermal degradation of β-carotene in aqueous suspension.