5-Bromo-2-methyl-2-pentene
Tech Serve Solutions (TSS) offers 5-Bromo-2-methyl-2-pentene (CAS: 2270-59-9), a halogenated hydrocarbon with a molecular weight of 163.06 g/mol. This versatile organic building block is characterised by its alkenyl structure and finds application in sophisticated organic synthesis. It is supplied with a purity of 97%, suitable for research and development purposes.

Synthesis of Geraniol-3-14C
5-Bromo-2-methyl-2-pentene has been documented for its use in the synthesis of geraniol-3-14C, a radiolabeled version of the important monoterpene alcohol.
Penifulvin A Synthesis
This compound serves as a precursor in the preparation of penifulvin A, a complex sesquiterpenoid featuring a unique dioxa-fenestrane architecture.
General Organic Synthesis
As an organic building block and halogenated hydrocarbon, it is suitable for various chemical synthesis pathways requiring an appropriately functionalised alkene.
| Molecular weight | 163.06 |
|---|---|
| Linear formula | BrCH2CH2CH=C(CH3)2 |
| Assay | 97% |
| Boiling point | 152-154 °C(lit.) |
| Density | 1.217 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.476(lit.) |
| Storage temperature | 2-8°C |
| Application | 5-Bromo-2-methyl-2-pentene has been used in the synthesis of:• geranlol-3-14C1• penifulvin A, a sesquiterpenoid with a novel dioxa-fenestrane structure2 |


Hazard statements
- H225Highly flammable liquid and vapour
- 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
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 22 °C / 71.6 °F |
| Transport (UN / ADR) | UN 1993BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36/37/38 |
| Safety statements (S) | 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 5-Bromo-2-methyl-2-pentene used for?
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5-Bromo-2-methyl-2-pentene is used as a building block in organic synthesis, notably in the preparation of geraniol-3-14C and penifulvin A.
What are the CAS number and chemical formula for 5-Bromo-2-methyl-2-pentene?
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The CAS number is 2270-59-9. The linear formula is BrCH2CH2CH=C(CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Bromo-2-methyl-2-pentene with a purity of 97% assay. This is a technical/research grade material and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 5-Bromo-2-methyl-2-pentene be handled safely?
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5-Bromo-2-methyl-2-pentene is a flammable liquid and vapour (H225) and can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, in a well-ventilated area. Avoid open flames and sparks.
Is 5-Bromo-2-methyl-2-pentene packed, shipped, or exported internationally?
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Yes, TSS is a global supplier and exporter of fine chemicals, including 5-Bromo-2-methyl-2-pentene.
How can I request a quote or sample?
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Please contact the TSS sales team via our website or direct email to request a quotation or a sample of 5-Bromo-2-methyl-2-pentene.
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