2,3,4-Trimethyl-2-pentene
2,3,4-Trimethyl-2-pentene (CAS 565-77-5) is an acyclic alkene with a molecular weight of 112.21 g/mol. This organic compound serves as a valuable building block in chemical synthesis. Its properties make it suitable for research and development purposes within organic chemistry laboratories. Tech Serve Solutions offers this chemical with an assay of 96% for various industrial and academic applications.
- Synonyms
- 565-77-5, (CH3)2C=C(CH3)CH(CH3)2

Organic Synthesis Intermediate
Used as a precursor or intermediate in the synthesis of more complex organic molecules. Its alkene functionality allows for various addition reactions.
Research and Development
A key component in academic and industrial R&D for exploring new chemical pathways and developing novel compounds.
Building Block Chemistry
Serves as a versatile building block in the construction of diverse organic structures, particularly in the field of fine chemicals.
| Molecular weight | 112.21 |
|---|---|
| Linear formula | (CH3)2C=C(CH3)CH(CH3)2 |
| Assay | 96% |
| Boiling point | 116 °C(lit.) |
| Density | 0.743 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.428(lit.) |
| Melting point | −113 °C(lit.) |



Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P301IF SWALLOWED
- P305IF IN EYES
- 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 / 64.4 °F |
| Transport (UN / ADR) | UN 3295BE 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xi |
| Risk statements (R) | 11-36/37/38-65 |
| Safety statements (S) | 16-26-36 |
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 2,3,4-Trimethyl-2-pentene used for?
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2,3,4-Trimethyl-2-pentene is primarily used as a building block in organic synthesis and for research and development purposes in chemical laboratories.
What is the CAS number and chemical formula for 2,3,4-Trimethyl-2-pentene?
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The CAS number is 565-77-5 and its linear formula is (CH3)2C=C(CH3)CH(CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,3,4-Trimethyl-2-pentene with a purity of 96%. This is considered a technical/research grade, and we do not represent it as USP, BP, or EP grade.
How should 2,3,4-Trimethyl-2-pentene be handled safely?
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2,3,4-Trimethyl-2-pentene is a highly flammable liquid and vapour. It can cause skin and eye irritation, and may cause respiratory irritation. It is also harmful if swallowed and enters airways. Always use in a well-ventilated area, away from ignition sources, and wear appropriate personal protective equipment including eyeshields and gloves. Refer to the Safety Data Sheet for full hazard information.
How is 2,3,4-Trimethyl-2-pentene packed and exported?
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This chemical is packed in accordance with international transport regulations, including UN 3295, Hazard Class 3, Packing Group II. We export globally, adhering to all necessary shipping and customs requirements.
How can I request a quote or sample for 2,3,4-Trimethyl-2-pentene?
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To request a quote or a sample, please contact our sales team through the website or by direct inquiry, providing your specific requirements and delivery details.
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