4-Penten-1-ol
4-Penten-1-ol (CAS: 821-09-0), with the linear formula CH2=CH(CH2)3OH and a molecular weight of 86.13 g/mol, is an unsaturated primary alcohol. It serves as a valuable building block in organic synthesis. Its primary documented application involves its use in studies of olefin epoxidation reactions catalyzed by tungstate complexes. This compound is supplied by Tech Serve Solutions for research and development purposes.
- IUPAC
- 2-Allylethyl alcohol

Catalysis Research
Used in the study of epoxidation reactions of olefins. Specifically, it has been employed to investigate the catalytic activity of oxo-diperoxo tungstate(VI) complexes in the presence of bicarbonate as a co-catalyst.
Organic Synthesis Intermediate
As a molecule containing both a terminal alkene and a primary alcohol functional group, 4-Penten-1-ol is a versatile intermediate for constructing more complex organic structures through various chemical transformations.
Chemical Building Block
Incorporated into synthetic pathways for the development of new chemical entities and materials. Its structure allows for diverse functional group interconversions and chain extensions.
| Molecular weight | 86.13 |
|---|---|
| Linear formula | CH2=CH(CH2)3OH |
| Assay | 99% |
| Boiling point | 134-137 °C(lit.) |
| Density | 0.834 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.429(lit.) |
| Application | 4-Penten-1-ol is used to study the epoxidation of olefins with oxo-diperoxo tungstate(VI) complex as catalyst and bicarbonate as co-catalyst1. |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 48 °C / 118.4 °F |
| Transport (UN / ADR) | UN 1987C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
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-Penten-1-ol used for?
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4-Penten-1-ol is primarily used in chemical research, particularly in studies of olefin epoxidation reactions. It also serves as a building block and intermediate in organic synthesis.
What is the CAS number and formula for 4-Penten-1-ol?
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The CAS number for 4-Penten-1-ol is 821-09-0, and its linear formula is CH2=CH(CH2)3OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Penten-1-ol with an assay of 99%. This product is suitable for research and development; TSS does not represent it as USP, BP, or EP grade.
How should 4-Penten-1-ol be handled safely?
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4-Penten-1-ol is a flammable liquid and vapour (H226). Handle with appropriate personal protective equipment, including safety eyeshields, gloves, and respiratory protection, in a well-ventilated area. Ensure it is kept away from heat and open flames.
Is 4-Penten-1-ol a controlled substance?
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Based on the provided data, 4-Penten-1-ol is not indicated as a controlled substance.
How is 4-Penten-1-ol packed and shipped?
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4-Penten-1-ol is classified for transport as UN 1987, Class 3, Packing Group III. It is exported globally by Tech Serve Solutions following all relevant transport regulations.
How can I request a quote or sample of 4-Penten-1-ol?
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To request a quote or sample, please contact the Tech Serve Solutions sales department via our website or by telephone. Our team will be pleased to assist you.
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