けい皮酸ベンジル 化学特性,用途語,生産方法
外観
白色〜わずかにうすい黄色, 結晶〜結晶性粉末又は塊
定義
本品は、ケイヒ酸(*)とベンジルアルコール(*)とのエステルであり、次の化学式で表される。
参照表示名称：ケイヒ酸, ベンジルアルコール
溶解性
エタノール、アセトン及びクロロホルムに溶けやすく、水に極めて溶けにくい。
用途
香料の保留剤として用いる。
化粧品の成分用途
香料
化学的特性
Benzyl Cinnamate occurs in
balsams and balsam oils. It forms white, sweet-balsamic-smelling crystals (mp
35-36°C). Benzyl cinnamate is used as a fixative in perfumes and as a component
of heavy, oriental perfumes.
天然物の起源
Reported found in Peru and Tolu balsam, in Sumatra and Penang benzoin, and as the main constituent of
copaiba balsam.
使用
Benzyl cinnamate has been employed as internal standard during the determination of compounds commonly added to personal care products such as UV filters and antimicrobial agents in environmental samples.
製造方法
By heating benzyl chloride and excess sodium cinnamate in water to 100 to 115°C; by heating sodium cinnamate with an
excess of benzyl chloride in the presence of diethylamine.
調製方法
Benzyl cinnamate is produced by the direct esterification of
benzyl alcohol with cinnamic acid.
一般的な説明
Benzyl cinnamate is widely used as a fragrance ingredient.
危険性
Moderately toxic.
安全性プロファイル
Moderately toxic by ingestion. Amild allergen and skin irritant. Combustible liquid. When heated to decomposition it emits acridsmoke and irritating fumes.
代謝
See monograph on Benzyl alcohol (p. 1011).
純化方法
Recrystallise the ester to a constant melting point from 95% EtOH. It has the odour of balsam. Alternatively dissolve it in Et2O, wash it with 10% aqueous Na2CO3, H2O, dry (Na2SO4), evaporate and fractionate it under reduced pressure using a short Vigreux column (p 11). It decomposes when boiled at atmospheric pressure. [Eliel & Anderson J Am Chem Soc 74 547 1952, Bender & Zerner J Am Chem Soc 84 2550 1962, Beilstein 9 IV 2012.]
けい皮酸ベンジル 上流と下流の製品情報
原材料
準備製品