"\u03B3: (3E)-4-(2,2-Dimethyl-6-methylenecyclohexyl)but-3-en-2-one" . . "ionone" . . . . . "Cyclocitrylideneacetone, irisone, jonon" . . "Jonon" . . "Ionone" . "alpha-Ionone" . "Ionone" . . . "\u03B1: (3E)-4-(2,6,6-Trimethylcyclohex-2-en-1-yl)but-3-en-2-one" . "\u03B2: (3E)-4-(2,6,6-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one" . . . . . . . . . "ionones" . . . . . . . . . "methylionone" . "ionone series compounds" . . . .