Glycerin Other names: Propanetriol Glycerol 1,2,3-Propanetriol Trihydroxypropane Formula: C3H8O3 CAS: 56-81-5 Weight: 92,09 g/mol Boiling point: 290 °C Melting point: 18,2 °C Density: 1,2613 g/cm3