4-Ethylphenol CAS 123-07-9

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4-Ethylphenol is an organic compound with CAS 123-07-9 and molecular formula C8H10O. It is a colorless to light yellow solid or crystal. Its pure product is usually colorless or light yellow crystals, but commercially available products may appear dark due to impurities. It can be soluble in organic solvents such as alcohols, ethers, esters, etc., but not in water.

In addition, it has a certain degree of stability towards acidity and alkalinity. It is a compound composed of phenol and ethyl, where ethyl replaces the hydrogen atom adjacent to the hydroxyl group of phenol. In its molecular structure, there is a covalent bond between oxygen atoms and hydrogen atoms, forming hydroxyl groups; There are also covalent bonds between carbon atoms and hydrogen atoms, forming ethyl groups.

It is a common phenolic compound and therefore has the properties of phenolic compounds. It can react with many compounds, such as condensation reaction with aldehydes, neutralization reaction with alkali metal hydroxides or acids, etc. In addition, due to its hydroxyl group, it can also undergo esterification and etherification reactions. 

 

In the pesticide industry, it can be used as a key raw material for synthesizing pesticides such as insecticides, herbicides, and fungicides. By reacting with different chemical reagents, various pesticide compounds with specific insecticidal or herbicidal activities can be synthesized. In some specific liquid crystal materials, it can be used as a structural regulator. By adjusting the molecular structure of liquid crystal materials, the physical properties such as phase transition temperature and phase transition rate can be controlled.

4-Ethylphenol has demonstrated significant application value in the field of cocktails due to its unique woody, smoky, and sweet aroma characteristics. From enhancing the smoky flavor of whiskey to adjusting the complex flavor of seafood cocktails, its applications cover multiple dimensions from improving classic wines to developing innovative special blends.

 

Aroma enhancer

Whiskey and Rum
4-Ethylphenol is one of the important aroma components in whiskey and rum. During the distillation and aging process of whiskey, the decomposition of lignin in wooden barrels (such as oak barrels) produces 4-ethylphenol, giving whiskey a unique smoky, leathery, and barn flavor.

 

 

In the production process of rum, a small amount of 4-ethylphenol is also generated during the fermentation and distillation of molasses, enhancing its complex aroma of tropical fruit and smoke.
Smoked flavor blending
When preparing smoked cocktails (such as "smoked Manhattan"), the bartender may add a trace of 4-ethylphenol essence to simulate the flavor of smoked whiskey or peat, so as to make the wine more layered.

Flavor regulator

 

Coffee and Chocolate Flavors
The sweet and woody characteristics of 4-ethylphenol can enhance the flavor complexity of cocktails containing coffee or chocolate elements (such as "mocha Martini"), making their taste more mellow.
Meat and seafood flavors
In seafood cocktails (such as oyster cocktails) or meat flavored cocktails (such as bacon bourbon).

 

4-Ethylphenol can simulate the aroma of smoked meat or seafood, enhancing the flavor reduction of the drink.

Application of food grade spices:
According to GB 2760-1996 "Hygienic Standards for the Use of Food Additives", 4-ethylphenol is allowed as a food flavoring agent, with a concentration of approximately 0.2mg/kg in the final flavored food. This regulation provides a basis for its legal use in cocktails.

 

Add form

liquid flavor
Liquid essence containing 4-ethylphenol can be purchased on the market, usually with ethanol as the solvent. When using, the dosage should be strictly controlled (usually adding 0.01-0.05ml per liter of wine), as excessive amounts can cause the aroma to be too abrupt.

Solid spice
Some high-end cocktail sets offer powdered or granular spices containing trace amounts of 4-ethylphenol. It can be dissolved in the wine by shaking or stirring to achieve sustained release of aroma.

Safety operation standards

 

Usage control
Excessive addition (exceeding 0.5mg/L) may cause medicinal and irritating odors in the liquor, affecting the drinking experience. It is recommended to use a step-by-step addition method when using for the first time, gradually adjusting to the optimal concentration.

 

 

Dissolving treatment
It can be dissolved in a small amount of high alcohol (such as vodka) first, and then slowly added to the liquor to avoid excessive local concentration.
Storage conditions
The essence containing 4-ethylphenol should be kept away from light and sealed to prevent oxidation from causing aroma decay.

4-ethylphenol is an organic compound with important physical and chemical properties, often used in the laboratory to synthesize other compounds and materials. The following are common laboratory synthesis methods for 4 ethylphenol:

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