Doxycycline, also known as doxycycline hydrochloride and long-acting oxytetracycline, is a semi-synthetic tetracycline antibiotic, with the same antibacterial spectrum as tetracycline and oxytetracycline, but with broad spectrum, strong effect and long-acting characteristics.Doxycycline is used to treat mycoplasma, chlamydia, rickettsia and other infections.This product is a yellow crystalline powder, odorless, bitter taste, soluble in water and methanol, slightly soluble in acetone, ethanol, insoluble in ether and benzene.Widely used in farm, tetracycline antibiotics have a strong adsorption capacity on the soil, and are not easy to degrade in the environment.