5-Hexyn-1-ol
5-Hexyn-1-ol (CAS: 928-90-5) is a terminal alkyne alcohol with the molecular formula HC≡C(CH2)4OH and a molecular weight of 98.14 g/mol. This organic building block serves as a versatile intermediate in chemical synthesis. Its unique structure, featuring both a reactive alkyne and a primary alcohol functional group, allows for diverse chemical transformations, making it valuable in research and development for creating complex organic molecules.

Organic Synthesis Intermediate
Utilised as a key building block in the synthesis of more complex organic compounds. The terminal alkyne moiety can undergo various addition reactions, while the hydroxyl group can be functionalised or used in coupling reactions.
Pharmaceutical Research
Serves as a precursor or intermediate in the development of novel pharmaceutical agents. Its functional groups allow for its incorporation into various drug discovery scaffolds.
Materials Science
Can be employed in the synthesis of functional polymers and advanced materials where the alkyne or alcohol group can be leveraged for cross-linking or surface modification.
| Molecular weight | 98.14 |
|---|---|
| Linear formula | HC≡C(CH2)4OH |
| Assay | 96% |
| Boiling point | 73-75 °C/15 mmHg(lit.) |
| Density | 0.89 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.450(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 70 °C / 158 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 5-Hexyn-1-ol primarily used for?
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5-Hexyn-1-ol is primarily used as a versatile intermediate and building block in organic synthesis, particularly in pharmaceutical research and the development of new materials.
What is the CAS number and chemical formula for 5-Hexyn-1-ol?
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The CAS number for 5-Hexyn-1-ol is 928-90-5, and its chemical formula is HC≡C(CH2)4OH.
What grade and purity does Tech Serve Solutions supply for 5-Hexyn-1-ol?
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Tech Serve Solutions supplies 5-Hexyn-1-ol with a minimum assay of 96%. This product is not classified as USP, BP, or EP grade.
How should 5-Hexyn-1-ol be handled safely?
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Handle 5-Hexyn-1-ol with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation and use a respirator suitable for organic vapours, as it is labelled with hazards H315 (skin irritation), H319 (eye irritation), and H335 (respiratory irritation).
Is 5-Hexyn-1-ol a controlled substance?
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The provided data does not indicate that 5-Hexyn-1-ol is a controlled substance.
How is 5-Hexyn-1-ol packed and exported?
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5-Hexyn-1-ol is available for purchase and export. Specific packing details will be provided upon request or with an order confirmation.
How can I request a sample or quote for 5-Hexyn-1-ol?
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To request a sample or quote for 5-Hexyn-1-ol, please contact our sales team through the website or by phone.
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