クロトン酸エチル 化學(xué)特性,用途語(yǔ),生産方法
外観
無(wú)色～わずかにうすい黃色, 澄明の液體
溶解性
エタノール及びアセトンに混和するが、水に溶けにくい。
用途
有機(jī)合成原料。
化學(xué)的特性
Ethyl crotonate has a powerful, sour, caramellic-fruity odor.
天然物の起源
Reported found in Fragaria vesca. Also reported found in guava fruit, guava peel, pineapple, white wine,
yellow passion fruit, fresh mango, naranjilla fruit, mussel, loganberry, apple, papaya, concord grape, strawberry, rum, cocoa, plum,
kiwifruit and other natural sources.
使用
Ethyl Crotonate is a synthetic flavoring agent that is a moderately
stable, colorless to light yellow liquid of sharp winey note. it should
be stored in glass, tin, or resin-lined containers. it is used in fruit
flavors for application in baked goods, beverages, and candy at
2–7 ppm.
製造方法
By esterification of crotonic acid with ethyl alcohol in the presence of concentrated H2SO4.
一般的な説明
Ethyl
trans-2-butenoate is a volatile flavor compound found in fruits such as cashew apple, African star apple, naranjilla fruit and sweet passion fruit.
危険性
Flammable, dangerous fire risk. Strong irritant.
安全性プロファイル
Moderately toxic by
ingestion and probably by inhalation. A skin ,
mucous membrane, and severe eye irritant.
Very dangerous fire hazard when exposed to
heat or flame; can react vigorously with
oxidizing materials. To fight fire, use foam,
CO2, or dry chemical. See also ESTERS.
When heated to decomposition it emits
acrid smoke and fumes.
純化方法
Wash it with aqueous 5% Na2CO3, then with saturated aqueous CaCl2, dry it with CaCl2 and distil it. [Beilstein 2 IV 1500.]
クロトン酸エチル 上流と下流の製品情報(bào)
原材料
準(zhǔn)備製品