... ) widely used as pharmaceutical intermediates, polyurethane foaming agent / blowing agent to produce flexible pu foam, metal degreaser, oil ... dew axing, mold discharging agent and decaffeination agent, and also in adhesive, agrochemical and film ... solvent, widely be used as organic solvent, parting agent, vesicant, detergent, and suffocating, degrease, refrigeration etc ...