3-Methyl-1-hexene
3-Methyl-1-hexene (CAS 3404-61-3), with the molecular formula C7H14, is a branched alkene with a molecular weight of 98.19 g/mol. This acyclic hydrocarbon is primarily utilised as a building block and intermediate in organic synthesis and chemical research. Its specific structure lends itself to various chemical transformations, making it a valuable component in the development of more complex molecules.

Organic Synthesis Intermediate
Serves as a key intermediate in the synthesis of various organic compounds. Its alkene functionality allows for addition reactions, polymerisation, and other transformations critical for developing novel molecules.
Research and Development
Utilised in laboratory settings for research purposes, including the exploration of new synthetic pathways and the characterisation of chemical reactions. It is a valuable reagent for academic and industrial R&D.
Building Block for Specialty Chemicals
Functions as a foundational building block in the production of specialty chemicals. Its unique structure can be incorporated into target molecules requiring specific hydrocarbon chains.
| Molecular weight | 98.19 |
|---|---|
| Linear formula | CH3CH2CH2CH(CH3)CH=CH2 |
| Assay | ≥85% (GC) |
| Boiling point | 83-84 °C |
| Density | 0.695 g/mL at 20 °C(lit.) |
| Refractive index | n20/D 1.393 |
| Impurities tested | ~10% 5-methyl-1-hexene |


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 | -18 °C / -.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 3-Methyl-1-hexene used for?
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3-Methyl-1-hexene is primarily used as an intermediate in organic synthesis and as a building block for creating more complex organic molecules. It is also employed in research and development laboratories.
What are the CAS number and molecular formula for 3-Methyl-1-hexene?
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The CAS number for 3-Methyl-1-hexene is 3404-61-3, and its molecular formula is C7H14 (or CH3CH2CH2CH(CH3)CH=CH2).
What grade and purity does Tech Serve Solutions supply for 3-Methyl-1-hexene?
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Tech Serve Solutions supplies 3-Methyl-1-hexene with an assay of ≥85% (GC). This is a technical grade product and is not represented as USP, BP, EP, or pharmacopoeia grade.
How should 3-Methyl-1-hexene be handled safely?
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3-Methyl-1-hexene is a highly flammable liquid and vapour (H225) and may be fatal if swallowed and enters airways (H304). Handle with appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, in a well-ventilated area, away from ignition sources. Refer to the Safety Data Sheet (SDS) for comprehensive safety information.
How is 3-Methyl-1-hexene packed and shipped?
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3-Methyl-1-hexene is shipped as a hazardous material under UN 3295BF, Packing Group II. Packaging is designed to meet international shipping regulations for flammable liquids. TSS exports globally.
How can I request a quote or sample of 3-Methyl-1-hexene?
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To request a quote or sample of 3-Methyl-1-hexene, please contact our sales team via the website or by phone. Please provide your specific requirements.
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