1,3-Propanediol (Trimethylene Glycol) 98% / 99% / 99.5% CAS No. 504-63-2 Industrial & Pharmaceutical Grade

1,3-Propanediol, available in 98%, 99%, and 99.5% concentrations, is produced via advanced chemical synthesis or through bio-based fermentation processes . It features excellent hygroscopicity, high boiling point, and complete miscibility with water and many polar solvents . As a linear diol with three carbon atoms, it is widely used as a solvent, an intermediate in polymer production (particularly polytrimethylene terephthalate), an antifreeze agent, and a building block in pharmaceutical synthesis . Its high purity and consistent quality make it ideal for critical applications requiring precise chemical properties. Each batch is rigorously tested using GC analysis to ensure consistent quality meeting industrial and pharmaceutical standards .

Scope of Application

• Used as a key monomer in the production of polytrimethylene terephthalate (PTT) polymers, a high-performance polyester for fibers, textiles, and engineering plastics  ;

• Acts as a solvent for thin film preparations, in coatings, adhesives, laminates, and wood paints, providing excellent flow and leveling properties  ;

• Widely applied in organic synthesis as a reagent for vinyl epoxide synthon, epoxide ring-opening reactions, polymerization reactions, and natural product syntheses  ;

• Functions as an antifreeze agent and heat transfer fluid in various industrial applications  ;

• Serves as a pharmaceutical intermediate in the synthesis of various drugs and as a building block for novel antioxidants  ;

• Used as a hydrotrope in research applications to study solubilization phenomena  ;

• Acts as a laboratory reagent and reference standard for gas chromatography (GC) and other analytical chemistry applications  ;

• Employed in the production of aliphatic polyesters, adhesives, and molding compounds  .