3-Buten-2-ol, 3-methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)- 3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-ol 70172-00-8 AI3-36073 BRN 2255371 Isomethyl-alpha-ionol alpha-Methylionol