1-(5,5-Dimethyl-1-cyclohexen-1-yl)-4-penten-1-one 1-(5,5-Dimethyl-1-cyclohexen-1-yl)pent-4-en-1-one 4-Penten-1-one, 1-(5,5-dimethyl-1-cyclohexen-1-yl)- 56973-85-4 EINECS 260-486-7