Product Name: 1,2-Propanediol INCI Name: PROPYLENE GLYCOL Molecular Formula: C3H8O2 Molecular Weight: 76.09 Appearance: Viscous Liquid Purity: 99% CAS NO.: 57-55-6 EINECS No.: 200-338-0 Supplier: ZHENYIBIO Propylene glycol is used for similar applications as other glycols. Propylene glycol is an important raw material for unsaturated polyester, epoxy resin, and polyurethane resin. The use amount in this area accounts for about 45% of the total consumption of propylene glycol. Such unsaturated polyester is used extensively for reinforced plastics and surface coatings.