Its primary application lies in the synthesis of polybutylene succinate (PBS)—a plastic possessing excellent biodegradability—which is utilized in the production of packaging materials, agricultural films, disposable tableware, and similar items, thereby contributing to the reduction of “white pollution.” Furthermore, succinic acid can be hydrogenated to yield 1,4-butanediol (BDO), which subsequently serves as a precursor for the production of polymeric materials such as tetrahydrofuran (THF) and polyurethanes.
In the food industry, succinic acid functions as an acidity regulator, chelating agent, and antioxidant synergist; it is employed to adjust food pH levels, enhance flavor, and extend product shelf life.
In the pharmaceutical sector, succinic acid serves as a crucial intermediate in the synthesis of Vitamin A, Vitamin B, sulfonamide drugs, and antibiotics (such as erythromycin succinate).
In agriculture, succinic acid acts as a plant growth regulator, stimulating crop growth and enhancing plant resistance to environmental stress.
In the field of daily chemical products, succinic acid is utilized in the manufacture of surfactants, detergents, lubricants, and cosmetic ingredients; for instance, succinic acid esters are incorporated into skincare products to function as emulsifiers, thickeners, and humectants.