3-Bromo-4-chlorobenzoic acid
3-Bromo-4-chlorobenzoic acid (CAS: 42860-10-6), a halogenated aromatic carboxylic acid with the formula BrC6H3(Cl)CO2H and a molecular weight of 235.46 g/mol, is a key organic building block. This compound serves as a valuable intermediate in chemical synthesis, particularly for the development of novel molecules in pharmaceuticals and materials science. Its structure, featuring both bromine and chlorine substituents on the benzoic acid core, allows for diverse chemical modifications.

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs) and complex drug candidates. Its reactive sites enable the introduction of various functional groups essential for therapeutic activity.
Organic Synthesis Building Block
A versatile reagent for constructing complex organic molecules. It is employed in academic research and industrial R&D for creating novel chemical entities.
Materials Science
Incorporated into the synthesis of advanced materials and functional polymers. The specific halogenation pattern can influence the electronic and physical properties of the final materials.
| Molecular weight | 235.46 |
|---|---|
| Linear formula | BrC6H3(Cl)CO2H |
| Assay | 97% |
| Melting point | 218-222 °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 3-Bromo-4-chlorobenzoic acid used for?
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3-Bromo-4-chlorobenzoic acid is primarily used as a building block in organic synthesis, serving as an intermediate for pharmaceuticals, agrochemicals, and materials science research. Its reactive carboxylic acid group and halogen substituents allow for diverse chemical transformations.
What are the CAS number and formula for 3-Bromo-4-chlorobenzoic acid?
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The CAS number for 3-Bromo-4-chlorobenzoic acid is 42860-10-6, and its chemical formula is BrC6H3(Cl)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromo-4-chlorobenzoic acid with a minimum purity of 97% (Assay). We do not represent this product as USP, BP, EP, or pharmacopoeia grade.
How should 3-Bromo-4-chlorobenzoic acid be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Avoid inhalation of dust and contact with skin and eyes. Ensure adequate ventilation as it may cause respiratory irritation (H335), skin irritation (H315), and serious eye irritation (H319).
Is this chemical a controlled substance?
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Based on the provided data, 3-Bromo-4-chlorobenzoic acid is not indicated as a controlled substance. However, users should always verify local regulations.
How is 3-Bromo-4-chlorobenzoic acid packaged and shipped?
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This chemical is carefully packaged to ensure integrity during transit and is available for export globally by Tech Serve Solutions.
How can I request a quote or sample?
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To request a quote or a sample of 3-Bromo-4-chlorobenzoic acid, please contact our sales department through the website or by phone.
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