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外観
白色〜わずかにうすい黄色, 結晶〜結晶性粉末又は塊
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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
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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。
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用途
香料の保留剤として用いる。
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化粧品の成分用途
香料
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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.
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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.
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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.
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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.
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調製方法
Benzyl cinnamate is produced by the direct esterification of
benzyl alcohol with cinnamic acid.
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一般的な説明
Benzyl cinnamate is widely used as a fragrance ingredient.
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危険性
Moderately toxic.
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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.
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代謝
See monograph on Benzyl alcohol (p. 1011).
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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.]
