4-Bromo-2-chlorophenol
4-Bromo-2-chlorophenol (CAS 3964-56-5), with the chemical formula BrC6H3(Cl)OH and a molecular weight of 207.45 g/mol, is a halogenated phenol. This compound serves as a valuable building block in organic synthesis. It is primarily utilised in research and development settings for the creation of more complex molecular structures, particularly in the field of chemical synthesis where precise functionalization is required.

Organic Synthesis Intermediate
4-Bromo-2-chlorophenol is employed as a reagent in the synthesis of various organic compounds. Its specific structure allows for targeted chemical modifications.
Pharmaceutical Intermediate Research
This compound has been documented as a reagent in the synthesis of heterocyclic compounds, such as derivatives of benzo[b][1,4]oxazine, which are areas of interest in pharmaceutical research.
Building Block for Fine Chemicals
As an organic building block, 4-Bromo-2-chlorophenol is useful for constructing more complex molecules utilized in the fine chemical industry.
| Molecular weight | 207.45 |
|---|---|
| Linear formula | BrC6H3(Cl)OH |
| Assay | 99% |
| Boiling point | 232-235 °C(lit.) |
| Application | 4-Bromo-2-chlorophenol was used as reagent during the synthesis of 7-arylbenzo[b][1,4]oxazin derivatives1. |
| Melting point | 47-49 °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 |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
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-2-chlorophenol used for?
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4-Bromo-2-chlorophenol is used as a reagent and building block in organic synthesis, including the preparation of benzo[b][1,4]oxazine derivatives.
What are the CAS number and chemical formula for 4-Bromo-2-chlorophenol?
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The CAS number for 4-Bromo-2-chlorophenol is 3964-56-5, and its chemical formula is BrC6H3(Cl)OH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-2-chlorophenol with an assay of 99%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should 4-Bromo-2-chlorophenol be handled safely?
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4-Bromo-2-chlorophenol is classified as a warning substance. It can cause skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Recommended personal protective equipment includes a dust mask type N95, eyeshields, and gloves. Handle in a well-ventilated area and avoid breathing dust.
How is 4-Bromo-2-chlorophenol packed, shipped, and exported?
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4-Bromo-2-chlorophenol is carefully packed according to international shipping regulations for hazardous materials (UN 3077, Class 9, Packing Group III) and exported globally by Tech Serve Solutions.
How can I request a sample or quote for 4-Bromo-2-chlorophenol?
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To request a sample or a quote for 4-Bromo-2-chlorophenol, please contact the Tech Serve Solutions sales department via our website or direct inquiry.
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