1-Pentene
1-Pentene (CAS: 109-67-1), a linear alpha-olefin with the formula CH3CH2CH2CH=CH2, is a highly flammable liquid. It is primarily employed as a chemical intermediate in the synthesis of polymers and other organic compounds. Its reactive double bond makes it a versatile building block for various chemical processes. This acyclic alkene serves as a fundamental component in organic synthesis and research applications.

Polymer Synthesis
1-Pentene is a monomer used in the production of polyolefins and specialty copolymers. Its incorporation into polymer chains can modify properties such as flexibility and density.
Organic Synthesis Intermediate
As a reactive alkene, it serves as a key building block for producing a range of organic chemicals. It participates in various addition reactions, facilitating the creation of more complex molecules.
Research and Development
This compound is widely utilized in academic and industrial research laboratories for exploring new synthetic pathways and developing novel materials.
| Molecular weight | 70.13 |
|---|---|
| Linear formula | CH3CH2CH2CH=CH2 |
| Assay | 98% |
| Boiling point | 29.9-30.1 °C(lit.) |
| Density | 0.641 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.371(lit.) |
| Solubility | alcohol: miscible(lit.)benzene: miscible(lit.)diethyl ether: miscible(lit.)water: insoluble(lit.) |
| Vapour pressure | 10.27 psi (20 °C) |
| Vapour density | 2.4 (vs air) |
| Autoignition temp | 522 °F |
| Storage temperature | 2-8°C |



Hazard statements
- H224Extremely flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P301IF SWALLOWED
- P305IF IN EYES
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | -51 °C / -59.8 °F |
| Transport (UN / ADR) | UN 1108 3 / PGI |
| Hazard codes (EU) | F+,Xn |
| Risk statements (R) | 12-52/53-65 |
| Safety statements (S) | 61-62 |
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 1-Pentene used for?
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1-Pentene is used as a monomer in polymer synthesis and as an intermediate in organic chemical production. It is also employed in research and development settings.
What is the CAS number and chemical formula for 1-Pentene?
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The CAS number for 1-Pentene is 109-67-1, and its chemical formula is CH3CH2CH2CH=CH2.
What grade and purity does Tech Serve Solutions supply for 1-Pentene?
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Tech Serve Solutions supplies 1-Pentene with an assay of 98%. This is a technical/research grade product; TSS does not represent it as USP, BP, EP, or other pharmacopoeial grades.
How should 1-Pentene be handled and stored?
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1-Pentene is extremely flammable (Flash Point: -51 °C) and can be fatal if swallowed and enters airways (H304). It also causes skin (H315) and serious eye irritation (H319). Store at 2-8°C away from ignition sources and incompatible materials. Always use appropriate personal protective equipment, including eyeshields and gloves.
Is 1-Pentene available for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 1-Pentene.
How can I request a quote or sample for 1-Pentene?
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To request a quote or sample for 1-Pentene, please contact our sales team through the website or by phone.
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