2,3-Dimethyl-1-pentene
2,3-Dimethyl-1-pentene (CAS: 3404-72-6) is an acyclic alkene with the molecular formula C7H14. Possessing a molecular weight of 98.19 g/mol, this organic compound is primarily utilised as a building block in chemical synthesis. Its specific structure lends itself to various organic transformations, making it a valuable intermediate for researchers and industrial chemists. Tech Serve Solutions supplies this chemical for laboratory and research purposes.
- Synonyms
- CH3CH2CH(CH3)C(CH3)=CH21-Pentene, 2,3-dimethyl-

Organic Synthesis Intermediate
2,3-Dimethyl-1-pentene serves as a versatile intermediate in the synthesis of more complex organic molecules. Its alkene functionality allows for a range of addition reactions crucial in developing novel compounds.
Research and Development
This compound is employed in R&D settings for exploring new synthetic pathways and creating specialised chemical structures. Its defined reactivity makes it a useful tool for academic and industrial research laboratories.
Building Block for Specialty Chemicals
As an organic building block, 2,3-Dimethyl-1-pentene contributes to the construction of specialty chemicals with specific properties. Its branched, unsaturated structure can be incorporated into diverse molecular frameworks.
| Molecular weight | 98.19 |
|---|---|
| Linear formula | CH3CH2CH(CH3)C(CH3)=CH2 |
| Assay | ≥97.0% (GC) |
| Boiling point | 85 °C(lit.) |
| Density | 0.707 g/mL at 20 °C |
| Refractive index | n20/D 1.403 |


Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P301IF SWALLOWED
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -17 °C / 1.4 °F |
| Transport (UN / ADR) | UN 3295BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-65 |
| Safety statements (S) | 16-62 |
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 2,3-Dimethyl-1-pentene used for?
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2,3-Dimethyl-1-pentene is primarily used as a building block in organic synthesis and for research and development purposes in laboratories.
What are the CAS number and formula for 2,3-Dimethyl-1-pentene?
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The CAS number for 2,3-Dimethyl-1-pentene is 3404-72-6 and its linear formula is CH3CH2CH(CH3)C(CH3)=CH2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3-Dimethyl-1-pentene with an assay of ≥97.0% (GC). This is a technical grade suitable for research and synthesis, and is not represented as USP, BP, or EP.
What are the main safety hazards associated with 2,3-Dimethyl-1-pentene?
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2,3-Dimethyl-1-pentene is classified as Danger due to high flammability (H225) and may be fatal if swallowed and enters airways (H304). Appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, must be used when handling.
How is 2,3-Dimethyl-1-pentene packed and exported?
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2,3-Dimethyl-1-pentene is shipped as UN 3295, Packing Group II, reflecting its hazardous nature. Tech Serve Solutions adheres to all international shipping regulations for hazardous materials.
How can I request a quote or sample of 2,3-Dimethyl-1-pentene?
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To request a quote or sample, please contact our sales team via the website or direct email, providing your details and the quantity required.
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