Ester is also an organic compound. Its structure contains acyl groups and hydrocarbon oxy groups, and the two are connected to form this unique shape. The properties of esters, many of which have a fragrant taste, are common in life. Such as the fragrance of flowers and fruits, the Dorai esters give it.

The preparation of esters is often obtained by the reaction of acid and alcohol through esterification. This reaction requires a catalyst to accompany it, and conditions such as temperature and pressure are controlled. The process involves dehydrogenation of acids and dehydrogenation of alcohols. The combination of the two, the ester is formed, and water is also produced.

Ester is used in industry and has a wide range of uses. It can be used as a solvent to dissolve auxiliary substances; it is also used in the fragrance industry to adjust various aromas. In the field of medicine, it is also useful, either as a drug carrier or with therapeutic effect.

From the perspective of organic chemistry, esters play an important role in all aspects of human life, and are an important class of organic compounds.