1-(2,4-Dimethyl-3-cyclohexene-1-yl)-1-buten-3-one 3-Buten-2-one, 4-(2,4-dimethyl-3-cyclohexen-1-yl)- 4-(2,4-Dimethyl-3-cyclohexen-1-yl)-3-buten-2-one 4687-77-8 EINECS 225-143-8