3-Pentyn-1-ol
3-Pentyn-1-ol (CAS: 10229-10-4, Formula: CH₃C≡CCH₂CH₂OH) is a versatile organic building block with a molecular weight of 84.12. This alkyne alcohol is primarily utilised in chemical synthesis and as an intermediate in the creation of more complex organic molecules. It serves as a valuable reagent in research and development laboratories for constructing novel chemical entities.

Synthesis of Complex Organic Molecules
3-Pentyn-1-ol functions as a key intermediate in the synthesis of advanced organic compounds. For instance, it has been employed in the preparation of molecules like 4,4-bis(1-methyl-1H-indol-3-yl)pentan-1-ol.
Organic Building Block
Its structure, featuring both an alkyne and a primary alcohol functional group, makes it a useful building block in organic chemistry. It can participate in a variety of reactions, allowing for diverse synthetic pathways.
Chemical Research and Development
This compound is utilised in research settings for exploring new synthetic methodologies and developing novel chemical structures. Its reactivity profile supports its role in academic and industrial R&D.
| Molecular weight | 84.12 |
|---|---|
| Linear formula | CH3C≡CCH2CH2OH |
| Assay | 97% |
| Boiling point | 154-157 °C(lit.) |
| Density | 0.912 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.456(lit.) |
| Storage temperature | 2-8°C |
| Application | 3-Pentyn-1-ol was used in the synthesis of 4,4-bis(1-methyl-1H-indol-3-yl)pentan-1-ol1. |


Hazard statements
- H226Flammable liquid and vapour
- 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, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 54 °C / 129.2 °F |
| Transport (UN / ADR) | UN 1987C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| 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 3-Pentyn-1-ol used for?
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3-Pentyn-1-ol is used as an organic building block and intermediate in chemical synthesis, notably in the preparation of complex molecules such as 4,4-bis(1-methyl-1H-indol-3-yl)pentan-1-ol.
What are the CAS number and formula for 3-Pentyn-1-ol?
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The CAS number for 3-Pentyn-1-ol is 10229-10-4, and its linear formula is CH₃C≡CCH₂CH₂OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Pentyn-1-ol with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
How should 3-Pentyn-1-ol be handled and stored?
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3-Pentyn-1-ol is a flammable liquid and vapour (H226) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). It should be handled with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, and stored at 2-8°C.
Is 3-Pentyn-1-ol a controlled substance?
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The provided data does not indicate that 3-Pentyn-1-ol is a controlled substance.
How is 3-Pentyn-1-ol packed and shipped?
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3-Pentyn-1-ol is shipped as UN 1987, Class 3, Packing Group III. Specific packing configurations are available upon request.
How can I request a quote or sample for 3-Pentyn-1-ol?
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To request a quote or a sample of 3-Pentyn-1-ol, please contact our sales team through the website or by phone.
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