4-(2,2,6-TRIMETHYLCYCLOHEXYL)-2-BUTANONE

Almost colorless oily liquid.B.P. 235℃. Sp.Gr. 0.90.Practically insoluble in water, soluble in alcohol and oils.

Apart from occasional use in special variations of the Ionone themes and as a supporting note in perfumes with Ambre emphasis,Tetrahydroionone has very little importance.

Tetrahydroionone is produced by controlled hydrogenation of Ionone (alpha- or beta-) with a Platinum catalyst. Complete hydrogenation may lead to the alcohol (Tetrahydro ionol).