The chemical formula C2H3O2- represents the acetate ion, which is a negatively charged ion (anion) derived from acetic acid. It consists of two carbon atoms, three hydrogen atoms, and two oxygen atoms. Acetate is commonly found in various biological and chemical processes, playing a crucial role in metabolism. Acetate is widely used in the production of various chemicals, including acetic acid and acetate esters. It is also an important component in the synthesis of biopolymers and serves as a building block in the formation of lipids and other organic compounds.