1,5-pentanediol

1,5-Pentanediol (CAS 111-29-5), also known as pentamethylene glycol, is a bifunctional diol used as a reactive building block and process solvent in polymer, personal care, and specialty chemical manufacturing.

Where is 1,5-pentanediol used?

• Polymer production: reacts with diisocyanates or diacids to build polyurethane and polyester chains
• Coatings, adhesives, and elastomers: influences flexibility and molecular weight
• Personal care: humectant and solvent in skin-conditioning products, supporting ingredient solubilization and moisture retention
• Plasticizer and cross-linking applications: chain extender or curing co-agent in specialty resins and films
• Food and flavor manufacturing: carrier solvent for flavor concentrates and aroma compounds
• Its two terminal hydroxyl groups make it a practical monomer for condensation reactions.

Good to know: Technical grade is the standard commercial offering; high-purity grades are available for personal care and food-contact applications. Buyers should confirm purity specifications and compliance documentation, including FCC or other food-grade certifications, based on end-use requirements.

Commercial specifications

• Clear, low-viscosity liquid in drum and IBC quantities
• Technical grade standard; high-purity grades for personal care and food-contact
• Verify purity specifications and compliance documentation