4-Aminophenyl propargyl ether
4-Aminophenyl propargyl ether (CAS: 26557-78-8; Formula: C9H9NO; Molar Mass: 147.17 g/mol) is a bifunctional organic compound featuring both amine and alkyne functionalities. This unique structure allows it to participate in various chemical reactions, including copper-mediated ligation and copolymerisation. It is primarily utilised as a monomer in materials science and polymer chemistry, enabling the synthesis of advanced polymers and functionalised materials.
- IUPAC
- 4-(prop-2-ynyloxy)aniline
- Synonyms
- 4-(prop-2-ynyloxy)aniline

Monomer for Polymer Synthesis
This compound serves as a valuable monomer for creating polymers with specific functionalities. Its amine and alkyne groups allow for diverse polymerisation pathways and post-polymerisation modifications.
Materials Science Applications
The dual functionality of 4-Aminophenyl propargyl ether makes it suitable for developing novel materials. It can be incorporated into polymer backbones or used for surface functionalisation via click chemistry.
Copper-Mediated Ligation
The propargyl ether group enables participation in copper(I)-catalysed alkyne-alkyne cycloaddition (CuAAC) reactions, a key component of 'click chemistry', for efficient molecular assembly and bioconjugation.
Copolymerisation with Maleimides
It can be copolymerised with maleic anhydrides and maleimides, allowing for the synthesis of polymers with tailored thermal and mechanical properties.
| Molecular weight | 147.17 |
|---|---|
| Empirical formula | C9H9NO |
| Assay | 95% (HPLC) |
| Storage temperature | 2-8°C |
| Application | This monomer has amino functionality as well as acetylene functionality for copper mediated ligation or functionalization. This can be used to copolymerize with maleic anhydrides and maleimides. |
| Melting point | 47-53 °C |
| Flash point | >110 °C / >230 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 4-Aminophenyl propargyl ether used for?
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4-Aminophenyl propargyl ether is primarily used as a monomer in materials science and polymer science, owing to its amine and alkyne functionalities, enabling applications in polymer synthesis and copper-mediated ligation reactions.
What are the CAS number and formula for 4-Aminophenyl propargyl ether?
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The CAS number for 4-Aminophenyl propargyl ether is 26557-78-8, and its molecular formula is C9H9NO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Aminophenyl propargyl ether with a minimum assay of 95% by HPLC. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or other pharmacopoeial grades.
What are the safety and handling recommendations for 4-Aminophenyl propargyl ether?
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4-Aminophenyl propargyl ether has a flash point above 110°C (230°F) and a water hazard class of 3 in Germany (WGK 3). It should be handled with appropriate personal protective equipment in a well-ventilated area. Refer to the Safety Data Sheet (SDS) for detailed information.
How is 4-Aminophenyl propargyl ether stored and shipped?
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This compound is typically stored at 2-8°C. Tech Serve Solutions ensures that all products are packaged and exported in compliance with international regulations for chemical transport.
How can I request a sample or quote for 4-Aminophenyl propargyl ether?
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To request a sample or a quote, please contact our sales team through the website or by direct inquiry, providing your specific requirements and shipping details.
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