3-Ethyl-1-pentyn-3-ol
3-Ethyl-1-pentyn-3-ol (CAS 6285-06-9), with the molecular formula C7H12O and a molecular weight of 112.17 g/mol, is a tertiary acetylenic alcohol. This versatile organic compound serves as a valuable building block in chemical synthesis. Its structure, featuring both an alcohol and a terminal alkyne functional group, allows for a range of chemical transformations, making it useful in the development of more complex molecules for various industrial applications.
- IUPAC
- (1-Ethyl-1-hydroxypropyl)acetylene,3-Ethylpent-1-yn-3-ol

Organic Synthesis Intermediate
3-Ethyl-1-pentyn-3-ol is employed as a key intermediate in the synthesis of diverse organic compounds. Its reactive alkyne and tertiary alcohol functionalities enable participation in various coupling, addition, and functionalization reactions.
Research and Development
This chemical finds application in research laboratories for the exploration of new synthetic routes and the development of novel materials and pharmaceutical candidates. Its specific structure offers unique reactivity profiles for organic chemists.
Specialty Chemical Production
It can be used in the production of specialty chemicals where its unique structural features are required. This includes potential use in the synthesis of fragrances, polymers, or other fine chemicals.
| Molecular weight | 112.17 |
|---|---|
| Linear formula | CH≡CC(OH)(CH2CH3)2 |
| Assay | 98.0% |
| Boiling point | 138-140 °C(lit.) |
| Density | 0.872 g/mL at 20 °C(lit.) |

Hazard statements
- H226Flammable liquid and vapour
| Flash point | 37 °C / 98.6 °F |
|---|---|
| Transport (UN / ADR) | UN 1987C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16 |
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 3-Ethyl-1-pentyn-3-ol used for?
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3-Ethyl-1-pentyn-3-ol is primarily used as a versatile building block and intermediate in organic synthesis and research and development for creating complex molecules and specialty chemicals.
What are the CAS number and molecular formula for 3-Ethyl-1-pentyn-3-ol?
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The CAS number for 3-Ethyl-1-pentyn-3-ol is 6285-06-9 and its molecular formula is C7H12O, represented linearly as CH≡CC(OH)(CH2CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Ethyl-1-pentyn-3-ol with an assay of 98.0%. This compound is supplied for research and industrial use and is not represented as USP, EP, or other pharmacopoeia grades.
What are the safety considerations for handling 3-Ethyl-1-pentyn-3-ol?
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3-Ethyl-1-pentyn-3-ol is a flammable liquid and vapour (H226). It should be kept away from heat, hot surfaces, sparks, open flames, and other ignition sources. Handle in a well-ventilated area, wearing appropriate personal protective equipment.
How is 3-Ethyl-1-pentyn-3-ol shipped and exported?
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3-Ethyl-1-pentyn-3-ol is classified as UN 1987, ALCOHOLS, N.O.S. (containing C3H7OH) or similar classification if applicable, shipped in Packing Group III. Tech Serve Solutions is an experienced global supplier and exporter of chemicals.
How can I request a sample or quote for 3-Ethyl-1-pentyn-3-ol?
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To request a sample or a quote for 3-Ethyl-1-pentyn-3-ol, please contact our sales team through the TSS website or by phone, providing your specific requirements.
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