4-Bromo-2-chloropyridine-3-carboxaldehyde
4-Bromo-2-chloropyridine-3-carboxaldehyde (CAS: 128071-84-1), with molecular formula C6H3BrClNO and a molecular weight of 220.45 g/mol, is a halogenated pyridine derivative. It serves as a valuable building block in organic synthesis, particularly for the preparation of more complex heterocyclic compounds. This aldehyde functionality and the strategic placement of halogen atoms make it a versatile intermediate for cross-coupling reactions and further functionalization in pharmaceutical and agrochemical research.
- IUPAC
- 4-Bromo-2-chloro-3-formylpyridine,4-Bromo-2-chloronicotinaldehyde
- Synonyms
- 4-Bromo-2-chloro-3-formylpyridine4-Bromo-2-chloronicotinaldehyde

Pharmaceutical Intermediate
Utilised in the synthesis of novel pharmaceutical agents, leveraging its halogenated pyridine structure for drug discovery and development.
Agrochemical Research
A key intermediate for the development of new pesticides and herbicides, contributing to advanced crop protection solutions.
Organic Synthesis
Serves as a versatile building block for creating complex organic molecules and heterocyclic systems in academic and industrial research.
Material Science
Explored for its potential in the development of functional materials due to its unique structural features.
| Molecular weight | 220.45 |
|---|---|
| Empirical formula | C6H3BrClNO |
| Assay | 96% |
| Melting point | 80-85 °C |

Hazard statements
- H301Toxic if swallowed
- H319Causes serious eye irritation
Precautionary statements
- P301IF SWALLOWED
- P305IF IN EYES
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36 |
| Safety statements (S) | 26 |
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-chloropyridine-3-carboxaldehyde used for?
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This compound is primarily used as a building block in organic synthesis, particularly for the development of new pharmaceuticals and agrochemicals. It is valuable for creating complex heterocyclic structures.
What is the CAS number and formula for 4-Bromo-2-chloropyridine-3-carboxaldehyde?
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The CAS number is 128071-84-1 and the empirical formula is C6H3BrClNO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-2-chloropyridine-3-carboxaldehyde with a minimum assay of 96%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 4-Bromo-2-chloropyridine-3-carboxaldehyde be handled?
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This compound is classified as Danger, carrying hazards H301 (Toxic if swallowed) and H319 (Causes serious eye irritation). Handle with appropriate personal protective equipment, including gloves and eye protection, and ensure adequate ventilation. Refer to the Safety Data Sheet for detailed handling procedures.
How is this chemical packed and exported?
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4-Bromo-2-chloropyridine-3-carboxaldehyde is packaged according to relevant transportation regulations, including UN 2811, Class 6.1, Packing Group III. TSS is experienced in global export.
How can I request a sample or quote?
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To request a sample or a quotation, please use the contact form on our website or email our sales department directly, providing the product name and CAS number.
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