1-Bromo-4-chlorobenzene
1-Bromo-4-chlorobenzene (CAS: 106-39-8; Formula: BrC6H4Cl) is a halogenated aromatic compound with a molecular weight of 191.45 g/mol. This white to off-white solid serves as a versatile building block in organic synthesis. It is primarily utilised in chemical research and for the preparation of more complex organic molecules, particularly within the pharmaceutical and agrochemical industries. Its distinct structure makes it valuable for introducing specific functionalities in targeted synthesis pathways.

Organic Synthesis Intermediate
Serves as a crucial intermediate in the synthesis of diverse organic compounds. Its bromo and chloro substituents allow for various cross-coupling reactions and nucleophilic substitutions, facilitating the construction of complex molecular architectures.
Research and Development
Widely employed in academic and industrial research laboratories for exploring new synthetic routes and developing novel chemical entities. Its defined reactivity is valuable for methodology studies and target-oriented synthesis projects.
Precursor for Specialty Chemicals
Used as a starting material for the production of specialty chemicals, including active pharmaceutical ingredients (APIs) and agrochemicals. The specific arrangement of halogen atoms enables precise functionalisation for desired end products.
| Molecular weight | 191.45 |
|---|---|
| Linear formula | BrC6H4Cl |
| Assay | 99% |
| Boiling point | 196 °C(lit.) |
| Melting point | 64-67 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 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 1-Bromo-4-chlorobenzene used for?
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1-Bromo-4-chlorobenzene is primarily used as an intermediate and building block in organic synthesis, particularly in research and development for creating complex organic molecules, including potential pharmaceutical and agrochemical compounds.
What is the CAS number and chemical formula for 1-Bromo-4-chlorobenzene?
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The CAS number is 106-39-8, and the chemical formula is BrC6H4Cl.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Bromo-4-chlorobenzene with a minimum assay of 99%. This product is suitable for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
How should 1-Bromo-4-chlorobenzene be handled safely?
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Handle 1-Bromo-4-chlorobenzene with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified as causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335), requiring careful handling to prevent exposure.
Is 1-Bromo-4-chlorobenzene a controlled substance?
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The provided data does not indicate that 1-Bromo-4-chlorobenzene is a controlled substance.
How is 1-Bromo-4-chlorobenzene packed and shipped?
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Tech Serve Solutions packs and ships 1-Bromo-4-chlorobenzene according to industry best practices for fine chemicals, ensuring safe transit for domestic and international export.
How can I request a quote or sample for 1-Bromo-4-chlorobenzene?
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To request a quote or a sample of 1-Bromo-4-chlorobenzene, please contact our sales team through the website or by phone, providing your specific requirements.
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