BDO is a kind of important basic organic chemical raw material and fine chemical raw material. Its derivatives are fine chemical products mainly used for production of THF, PTMEG, γ-Butyrolactone, PBT, PBS, PU, N-Methyl pyrrolidone etc. It is also widely used in the field of solvent, medicine, polyurethane, fibers, engineering plastics, cosmetics, plasticizer, curing agent, pesticide etc.