Ester，acid，methyl benzoate

NANJING AILY BIOTECHNOLOGY CO.,LTD

Country:China (Mainland)

Year Established: Business type: Lab/Research institutions

Integral:

Esters are chemical compounds consisting of a carbonyl adjacent to an ether linkage. They are derived by reacting an oxoacid with a hydroxyl compound such as an alcohol or phenol. Esters are usually derived from an inorganic acid or organic acid in which at least one -OH (hydroxyl) group is replaced by an -O-alkyl (alkoxy) group, and most commonly from carboxylic acids and alcohols. That is, esters are formed by condensing an acid with an alcohol.

Esters are ubiquitous. Most naturally occurring fats and oils are the fatty acid esters of glycerol. Esters with low molecular weight are commonly used as fragrances and found in essential oils and pheromones. Phosphoesters form the backbone of DNA molecules. Nitrate esters, such as nitroglycerin, are known for their explosive properties, while polyesters are important plastics, with monomers linked by ester moieties.

Orthoesters

An uncommon class of organic esters are the orthoesters, which have the formula RC(OR')₃. Triethylorthoformate (HC(OC₂H₅)₃) is derived, in terms of its name (but not its synthesis) from orthoformic acid (HC(OH)₃) and ethanol.

Inorganic esters

Ester is a general term for the product derived from the condensation of an acid and an alcohol. Thus, the nomenclature extends to inorganic oxo acids, e.g. phosphoric acid, sulfuric acid, nitric acid and boric acid. For example, triphenyl phosphate is the ester derived from phosphoric acid and phenol. Organic carbonates, such as ethylene carbonate, are derived from carbonic acid and ethylene glycol.

Ester odorants

Many esters have distinctive fruit-like odors (Allyl hexanoate smells like pineapple, Methyl benzoate smells like feijoa, etc. ), and many occur naturally in the essential oils of plants. This has also led to their commonplace use in artificial flavorings and fragrances when those odors aim to be mimicked.

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