... )CAS# 79-77-6 3)FEMA:2595 4)Appearence:Colorless to pale yellow liquid. 4-(2,6,6-Trimethyl-1-cyclohexenyl)-3 ... -buten-2-oneIdentificationName 4-(2,6,6-Trimethyl-1-cyclohexenyl)-3-buten-2-oneSynonyms ... beta-Ionone; (3E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3 ...