2-Propynoxyethanol

2-Propynoxyethanol (CAS 3973-18-0) is a bifunctional building block combining a terminal alkyne and a hydroxyl group in one molecule.

Where is 2-Propynoxyethanol used?

• Polymer chemistry: introduces reactive alkyne handles
• Plastics and polymer manufacturing: monomer or chain-end modifier
• Click chemistry: terminal alkyne groups for crosslinking or functionalization
• Ring-opening polymerization: initiator or co-initiator, with the hydroxyl group as initiating species
• Coatings and adhesives: polymer backbones for post-synthesis surface modification via alkyne-reactive coupling
• Formulators prepare alkyne-terminated polymers and macromonomers that undergo copper-catalyzed reactions.

Good to know: No established pharmacopoeial or food-grade specifications apply to this technical material; procurement is generally against technical-grade certificates of analysis.

Commercial specifications

• Commercial purity typically 95–98%
• Laboratory quantities through to multi-kilogram lots