1,2-Pentanediol is an important organic intermediate for the synthesis of propiconazole, a special fungicide for commercial crops; it also has excellent moisturizing properties and antiseptic effects. It is used in various skin care products such as skin cream, eye cream, skin lotion, baby care products, sunscreen, etc. It is also an important raw material for the production of polyester fibers, surfactants, pharmaceuticals and other products.