Sorbitol has 2 kinds of forms: crystalline sorbitol & liquid sorbitol. Crystalline sorbitol is white hygroscopic crystalline powder or particles, the relative density is about 1.49, easy dissolved in water (1g dissolved in about 0.45ml water), slightly soluble in ethanol. Liquid sorbitol (or sorbitol liquid) is a hexyl alcohol, 70% liquid sorbitol is viscous transparent liquid, optical activity, slightly sweet with hygroscopicity. Molecular formula: C6H14O6, molecular weight: 182.17, CAS No.: 50-70-4, the melting point is 85-105℃,the boiling point is 295℃.