The common name for C2H3O2 is Acetate. Acetate is the conjugate base of acetic acid, which is well-known as the component that gives vinegar its sour taste.
In its ionic form, acetate is often seen as a salt in combination with other cations, such as sodium acetate or potassium acetate. It’s commonly used in various applications, including the production of food additives, solvents, and in biochemical research.