3-Bromo-5-iodopyridine
3-Bromo-5-iodopyridine (CAS: 233770-01-9) is a halogenated heterocyclic compound with the molecular formula C5H3BrIN and a molecular weight of 283.89 g/mol. This pyridine derivative serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecules. Its utility spans various research and development sectors, contributing to advancements in chemical synthesis and the development of novel compounds.

Chemical Synthesis
Utilised as a key intermediate in multi-step organic synthesis pathways. Its pyridine core and reactive halogen substituents allow for diverse chemical transformations and the creation of novel molecular architectures.
Heterocyclic Chemistry Research
A useful reagent for exploring the reactivity of substituted pyridines. Its structure facilitates participation in cross-coupling reactions and other functionalisation strategies within heterocyclic chemistry.
Pharmaceutical Intermediate Development
Serves as a building block in the discovery and synthesis of potential pharmaceutical candidates. The presence of bromine and iodine allows for selective modification and introduction of diverse functional groups.
| Molecular weight | 283.89 |
|---|---|
| Empirical formula | C5H3BrIN |
| Assay | 95% |
| Melting point | 127-131 °C |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| 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 3-Bromo-5-iodopyridine used for?
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3-Bromo-5-iodopyridine is primarily used as a building block in chemical synthesis, particularly in organic and heterocyclic chemistry research, and as an intermediate in the development of pharmaceutical compounds.
What are the CAS number and formula for 3-Bromo-5-iodopyridine?
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The CAS number is 233770-01-9, and the molecular formula is C5H3BrIN.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Bromo-5-iodopyridine with a minimum assay of 95%. We do not represent this product as USP, BP, or EP grade; it is suitable for research and technical applications.
How should 3-Bromo-5-iodopyridine be handled safely?
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3-Bromo-5-iodopyridine is classified as Danger. It is harmful if swallowed (H302) and causes serious eye damage (H318). Use personal protective equipment including a dust mask type N95, eyeshields, and gloves. Ensure proper ventilation and avoid dust formation.
Is 3-Bromo-5-iodopyridine a controlled substance?
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The provided data does not indicate that 3-Bromo-5-iodopyridine is a controlled substance.
How is 3-Bromo-5-iodopyridine shipped and exported?
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Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals. We adhere to all relevant shipping and export regulations for chemical compounds.
How can I request a sample or quote for 3-Bromo-5-iodopyridine?
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Please contact our sales team directly or use the enquiry form on our website to request a sample or a quotation for 3-Bromo-5-iodopyridine.
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