2,4,4-Trimethyl-1-pentene
2,4,4-Trimethyl-1-pentene (CAS: 107-39-1) is an unsaturated acyclic hydrocarbon with the molecular formula C8H16 and a molecular weight of 112.21 g/mol. This alkene is a colourless liquid supplied at a minimum 99% purity. It serves as a valuable building block in organic synthesis and chemical manufacturing processes, contributing to the production of various chemical intermediates and specialized compounds.
- IUPAC
- α-Diisobutylene,Diisobutylene
- Synonyms
- 107-39-1(CH3)3CCH2C(CH3)=CH2α-DiisobutyleneDiisobutylene

Organic Synthesis Intermediate
Utilised as a reactive alkene building block in multi-step organic synthesis. Its structure allows for various addition reactions, making it a versatile precursor in the preparation of more complex molecules.
Chemical Manufacturing
Serves as a starting material or intermediate in the synthesis of various industrial chemicals. Its specific reactivity is leveraged in processes requiring alkylation or polymerisation reactions.
Research and Development
Employed in laboratory settings for research purposes, enabling chemists to explore new synthetic pathways and develop novel compounds.
| Molecular weight | 112.21 |
|---|---|
| Linear formula | (CH3)3CCH2C(CH3)=CH2 |
| Assay | 99% |
| Boiling point | 101-102 °C(lit.) |
| Density | 0.708 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.408(lit.) |
| Vapour pressure | 83 mmHg (37.7 °C) |
| Vapour density | >3.8 (vs air) |
| Autoignition temp | 736 °F |


Hazard statements
- H225Highly flammable liquid and vapour
- H411Toxic to aquatic life with long-lasting effects
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P273Avoid release to the environment
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -3 °C / 26.6 °F |
| Transport (UN / ADR) | UN 2050 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,N |
| Risk statements (R) | 11-51/53 |
| Safety statements (S) | 9-16-29-33-61 |
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 2,4,4-Trimethyl-1-pentene used for?
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2,4,4-Trimethyl-1-pentene is primarily used as a building block in organic synthesis and as an intermediate in chemical manufacturing processes. It is also utilised in research and development laboratories.
What is the CAS number and formula for 2,4,4-Trimethyl-1-pentene?
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The CAS number is 107-39-1, and the linear formula is (CH3)3CCH2C(CH3)=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,4,4-Trimethyl-1-pentene with a minimum assay of 99%. This is a technical/research grade; we do not represent it as USP, BP, EP, or any other pharmacopoeia standard.
How should 2,4,4-Trimethyl-1-pentene be handled safely?
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2,4,4-Trimethyl-1-pentene is a highly flammable liquid and vapour (H225) and is toxic to aquatic life with long-lasting effects (H411). Handle in a well-ventilated area, away from ignition sources, and use appropriate personal protective equipment, including safety glasses, gloves, and respiratory protection.
How is 2,4,4-Trimethyl-1-pentene packed and exported?
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2,4,4-Trimethyl-1-pentene is packaged in compliance with transportation regulations, typically in UN-approved containers for safe shipping. Tech Serve Solutions is experienced in global export.
How can I request a sample or quote for 2,4,4-Trimethyl-1-pentene?
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To request a sample or a quotation, please contact our sales department through the website or call us directly. Please specify the required quantity and delivery location.
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