Florfenicol, is a monofluorine derivative of artificially synthesized methycline, the molecular formula is C12H14Cl2FNO4S, white or gray-white crystalline powder, odorless, very slightly soluble in water , slightly soluble in glacial acetic acid, soluble in methanol, Ethanol. 
          Function: Animal antibacterial drug, used for sensitive bacteria, pigs; chicken and fish bacterial diseases, especially for respiratory infections and intestinal infections significantly.