Glycerol is useful in a variety of applications, glycerol is used as a solvent, plasticizer and humectant. In polyacrylamide gel electrophoresis, glycerol is used in sample preparation and gel formation. At a concentration of 5-10%, glycerol is used to increase the density of a sample so that it will layer at the bottom of a sample well.CAS Number: 56-81-5Molecular Weight: 92.1 DaChemical Formula: C3H8O3Solubility: Soluble in water (>500 g/L) at 20 C, methanol, ethanol, and DMSO. Insoluble in benzene, ether, chloroform, and fixed and volatile oils. Absorbs water from the air. Also absorbs hydrogen sulfide, hydrogen cyanide and sulfur dioxide.Storage Temperature: Room TemperatureResearch or further manufacturing use only, not for food or drug use.