Appearance White needle or powder crystal, soluble in water, alcohol, ether and other polar solvents

Application: Chemical reagent, also used in dye, organic synthesis
                      Used as a medicine, such as doxycycline, pesticides (e.g., dicofol), such as dye intermediates.Also used in                             detergent, plastics, coatings, etc.
                      Used in medicine, pesticide, dye and detergent, but also used in plastics and printing and coating
                      Widely used in synthesis of medicine, pesticide, polymerization of stabilizer and organic synthesis catalyst                               (esters, etc.).Also as the intermediate of medicine, paint and resin curing agent.