4-Bromo-3-fluoroiodobenzene
4-Bromo-3-fluoroiodobenzene (CAS: 136434-77-0), with the molecular formula BrC6H3(F)I and a molecular weight of 300.89 g/mol, is a halogenated aromatic compound. It serves as a valuable building block in organic synthesis, particularly in the development of complex molecules. Its unique substitution pattern makes it useful for introducing specific functionalities in medicinal chemistry and materials science research.

Organic Synthesis Intermediate
This compound acts as a versatile intermediate in the synthesis of various organic molecules. Its reactive sites allow for diverse chemical transformations, facilitating the construction of more complex structures for research and development.
Medicinal Chemistry Research
As a fluorinated aryl building block, 4-Bromo-3-fluoroiodobenzene is employed in the design and synthesis of novel pharmaceutical candidates. The presence of fluorine can modulate a molecule's pharmacokinetic and pharmacodynamic properties.
Materials Science
The unique electronic and structural properties imparted by the halogen substituents make this compound of interest in the development of new materials, including organic electronics and specialised polymers.
| Molecular weight | 300.89 |
|---|---|
| Linear formula | BrC6H3(F)I |
| Assay | 97% |
| Melting point | 34-38 °C(lit.) |

Hazard statements
- H302Harmful if swallowed
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Flash point | >110 °C / >230 °F |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-52/53 |
| Safety statements (S) | 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 4-Bromo-3-fluoroiodobenzene used for?
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4-Bromo-3-fluoroiodobenzene is primarily used as an intermediate in organic synthesis, particularly in medicinal chemistry research and materials science, due to its functionalised aryl structure.
What is the CAS number and molecular formula for 4-Bromo-3-fluoroiodobenzene?
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The CAS number is 136434-77-0 and the molecular formula is BrC6H3(F)I.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-3-fluoroiodobenzene at an assay of 97%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Bromo-3-fluoroiodobenzene be handled?
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4-Bromo-3-fluoroiodobenzene is classified as harmful if swallowed (H302) and may be harmful to aquatic life with long-lasting effects (R52/53). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, faceshields, and gloves, should be used. Handle in a well-ventilated area.
Is 4-Bromo-3-fluoroiodobenzene a controlled substance?
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The provided data does not indicate that 4-Bromo-3-fluoroiodobenzene is a controlled substance.
How is 4-Bromo-3-fluoroiodobenzene packed and shipped?
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Tech Serve Solutions adheres to stringent packaging and shipping regulations for chemicals, ensuring safe transport and export worldwide.
How can I request a quote or sample for 4-Bromo-3-fluoroiodobenzene?
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Please contact our sales team directly through the website or by phone to request a quote or a sample of 4-Bromo-3-fluoroiodobenzene.
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