α-イオノン

外観

無色～黄色, 澄明の液体

溶解性

水に不溶, エタノール, エーテルに易溶。水に不溶。エタノール、エーテル、ベンゼンなどに易溶。

用途

スミレ系香料として重要なもので広く香粧品に使用される。アルカリに安定であることから石けん香料にきわめて重要である。

説明

α-Ionone has a characteristic violet-like odor. α-Ionone may be prepared by condensing citral with acetone to form pseudoionone, which is then cyclized by acid-type reagents.

化学的特性

clear yellow liquid

使用

alpha-Ionone, is used in many floral accords. Gives a violet flower nuance to compositions, but is also used in rose, woody, amber, balsamic, and powdery fragrances. It is also used in perfumery, flavoring, and vitamin A (retinol) production for cosmetics and toiletries. beta isomer shows a less floral odor than the alpha. It has good substantivity and is used in all areas of perfumery.

一般的な説明

α-lonone is a C13 norterpenoid formed from the degradation of carotenoids. It is an important fragrance compound used in perfume industries due to its characteristic fine violet and rose scents. Commercially α-lonone is used in cosmetics, personal care products, detergents, etc. As a flavoring agent, it is widely used in various beverages including wine and tea.

純化方法

Purify α-ionone through a spinning band fractionating column. The semicarbazone has m 157-157.5o (from EtOH) and [] D +433o (c 4,