1,3-Propanediol (504-63-2) (C3H8O2)

1,3-Propanediol is an aliphatic diol with the chemical formula C3H8O2 and molecular weight 76.10 g/mol. It appears as a clear, colorless, hygroscopic liquid. It is fully miscible with water and many organic solvents. It is stable under normal conditions and has low volatility.
In terms of uses and applications, 1,3-Propanediol is widely used in the polymer and chemical industries as a monomer for producing polytrimethylene terephthalate (PTT), a high-performance polyester used in textiles, carpets, and engineering plastics. It is also used in cosmetics and personal care products as a humectant and solvent in lotions, creams, and hair care formulations due to its moisturizing properties. In the industrial sector, it is used in antifreeze formulations, coatings, adhesives, and inks. Additionally, it serves as a green chemical building block in bio-based and sustainable chemical manufacturing processes.