Tags: Chemical Compound, Chemical Substance.

The ionones are a series of closely related chemical substances that are part of a group of compounds known as rose ketones which also includes damascones and damascenones. Ionones are aroma compounds found in a variety of essential oils including rose oil. β-Ionone is a significant contributor to the aroma of roses despite its relatively low concentration and is an important fragrance chemical used in perfumery.

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IUPAC name
γ: (3E)-4-(22-Dimethyl-6-methylenecyclohexyl)but-3-en-2-one, β: (3E)-4-(266-Trimethylcyclohex-1-en-1-yl)but-3-en-2-one, α: (3E)-4-(266-Trimethylcyclohex-2-en-1-yl)but-3-en-2-one

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