This product is a derivative of dehydration of sorbitol, oral osmotic dehydration and diuresis medicine, the mechanism is similar to the intravenous injection of mannitol and sorbitol. By increasing the osmotic pressure of the plasma, the tissue (including the eye, brain, cerebrospinal fluid, etc.) into the blood vessels, thereby reducing tissue edema, reduce intraocular pressure, intracranial pressure and cerebrospinal fluid volume and pressure. Can be used as pharmaceutical intermediates, synthetic plastic resin additives, feed additives.