The chemical formula of ethyl acetate is related to the chemical composition of a substance. The formula is $C_ {4} H_ {8} O_ {2} $, which is accurate for the type and quantity of atoms contained in ethyl acetate. In chemical research and various chemical applications, it is crucial to clarify this chemical formula. From this formula, it can be seen that the molecule ethyl acetate contains four carbon atoms, eight hydrogen atoms and two oxygen atoms. This composition lays the foundation for the unique chemical properties and reaction characteristics of ethyl acetate. Whether it involves organic synthesis or chemical production, it is necessary to specify the chemical formula of ethyl acetate in order to make good use of its properties and seek efficient results. And when analyzing the chemical reactions it participates in, this chemical formula is also a key basis, which can help analyze the reaction mechanism and gain insight into the transformation of substances.