3-Hexyne-2,5-diol

3-Hexyne-2,5-diol (CAS 3031-66-1), also marketed as Golpanol HD, is an acetylenic diol used as a reactive intermediate and functional building block in specialty chemical manufacturing.

Where is 3-Hexyne-2,5-diol used?

• Pharmaceutical manufacturing: intermediate in the synthesis of active ingredients and chiral compounds, with the acetylenic backbone providing a defined structural scaffold
• Polymer production: monomer or chain-transfer component in specialty polyurethanes and polyesters, where the alkyne functionality enables post-polymerization modification
• Metalworking and lubricant formulations: corrosion inhibitor additive and surface-active component in aqueous cutting fluids for industrial machinery
• It also acts as a polymerization initiator in controlled synthesis applications requiring hydroxyl-terminated oligomers.

Commercial specifications

• Purity specifications commonly range from 97% to 99%+ for synthesis-grade applications.
• Packaging options generally include drum and IBC quantities suited to industrial procurement volumes.