Етилбутират

Натуральний і синтетичнийФРУКТИ, ОВОЧІ Й ГОРІХИфруктовий · ананас · солодкий
Верхні нотиПіраміда
—Сила
—Стійкість
—Походження
Зразок
Етилбутират як парфумерна сировина
Верхні ноти
Визначення

Ethyl butyrate, also known as ethyl butanoate, is an ester. It has a fruity odour similar to pineapple.

SWEET FRUITY ETHEREAL
Butyric acid ethyl ester, ethyl butanoate, butyric ether, ethyl n-butanoate, ethyl n-butyrate, butanoic acid ethyl ester
Type
Складник
Olfactive family
Фруктові
Source
synthesized from ethanol and butyric acid; also occurs naturally in many fruits
Chemical class
ester
Інструменти
Піраміда
ВВерхні ноти
СНоти серця
ББазові ноти
Стійкість на блотері
moderate to low

Запах

Its odour is described as fruity, juicy fruit, pineapple, cognac, sweet and tutti frutti. The odour is pineapple with a banana note, sweet, juicy and tutti-frutti in character. Its odor strength is very high, powerful and extremely diffusive.

Докладно

Ethyl butyrate is a butyrate ester resulting from the formal condensation of the hydroxy group of ethanol with the carboxy group of butyric acid. It appears as a clear colorless liquid with a pineapple-like odor. It also occurs naturally in many fruits, albeit at lower concentrations.

Occurrence

Ethyl n-butyrate, present at 0.033 ppm, is a volatile flavor component of fresh grapefruit juice. It is present in pineapple guava at 0.31 ug/kg of fruit. In Japanese muskmelon it was detected, contributing a grape-like odor.

Chemistry and properties

Ethyl butyrate is soluble in propylene glycol, paraffin oil, and kerosene. Its vapors are heavier than air. It may attack some forms of plastics. Ethyl butyrate from natural sources can be told apart from the synthetic material by stable isotope ratio analysis.

Other uses

Ethyl butyrate is used in manufacturing artificial rum. Its alcoholic solution constitutes the so-called "pineapple oil". It is also used as a plasticizer for cellulose and in a solvent mixture for cellulose esters and ethers.

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Related: Banana · Coconut · Coconut Water · Delta Decalactone · Delta Undecalactone · Guava · Mango · Papaya

Цікавий факт

In industrial use, ethyl butyrate is one of the cheapest chemicals. It is used in nearly all orange juices sold in the US, including those sold as "fresh" or "concentrated".

Отримання й хімія

Спосіб отримання

It can be synthesized by reacting ethanol and butyric acid. This is a condensation reaction, meaning water is produced in the reaction as a byproduct. Ethyl butyrate is synthesised in Jamaican rum upon the esterification of butyric acid from muck and ethanol during the distillation process.

Формула
C₆H₁₂O₂
CAS
105-54-4
Зовнішній вигляд
Clear colorless liquid with a pineapple-like odor
Стійкість
moderate to low
Синоніми
Butyric acid ethyl ester, ethyl butanoate, butyric ether, ethyl n-butanoate, ethyl n-butyrate, butanoic acid ethyl ester
Статус IFRA
Див. примітку

No IFRA Standard for the material itself (51st Amendment)

Фізичні властивості
Температура кипіння
120-121 °C
Температура плавлення
-93.3 °C
Температура спалаху
75 °F (24 °C) closed cup
Відносна густина
0.879 at 20 °C/4 °C
Показник заломлення
1.391-1.394

У парфумерії

Ethyl butyrate is one of the most common chemicals used in flavors and fragrances. It is used as a solvent in perfumery products. It is used in a variety of flavourings, including orange (the most common), cherry, pineapple, mango, guava, bubblegum, peach, apricot, fig and plum. It is also used in alcoholic beverages such as martinis and daiquiris.

Роль у формулі
01modifier
02top note lift
03solvent
Форми випуску
синтетична речовина натуральна речовина

Див. також

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