3,4-Diamino-5-bromopyridine
3,4-Diamino-5-bromopyridine (CAS 4635-08-9) is a heterocyclic organic compound with the molecular formula C5H6BrN3 and a molecular weight of 188.03 g/mol. As a key building block in organic synthesis, it features a pyridine core substituted with amine and bromine groups, enabling diverse chemical transformations. This compound is primarily utilised in the synthesis of more complex molecules for research and development purposes, particularly within the pharmaceutical and agrochemical sectors.
- IUPAC
- 5-Bromo-3,4-diaminopyridine
- Synonyms
- 5-Bromo-3,4-diaminopyridine

Organic Synthesis Intermediate
Serves as a versatile building block for constructing complex organic molecules. Its functional groups allow for various derivatizations and coupling reactions.
Pharmaceutical Research
Utilised in the development of novel drug candidates. The pyridine scaffold and reactive amine and bromo substituents are valuable for medicinal chemistry efforts.
Agrochemical Development
Employed in the synthesis of potential new agrochemical agents. Its structure can be incorporated into molecules designed for crop protection.
Heterocyclic Chemistry
A useful pyridine derivative for researchers focusing on heterocyclic compound synthesis and exploration.
| Molecular weight | 188.03 |
|---|---|
| Empirical formula | C5H6BrN3 |
| Assay | 95% |
| Melting point | 138-143 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H317May cause an allergic skin reaction
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38-43 |
| Safety statements (S) | 26-36/37/39 |
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 3,4-Diamino-5-bromopyridine used for?
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3,4-Diamino-5-bromopyridine is primarily used as a building block in organic synthesis, particularly in the research and development of new pharmaceutical and agrochemical compounds. Its structure lends itself to the creation of more complex heterocyclic molecules.
What is the CAS number and formula for 3,4-Diamino-5-bromopyridine?
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The CAS number is 4635-08-9, and its empirical formula is C5H6BrN3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,4-Diamino-5-bromopyridine with an assay of 95%. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards.
How should 3,4-Diamino-5-bromopyridine be handled safely?
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3,4-Diamino-5-bromopyridine is classified as harmful if swallowed and causes skin, eye, and respiratory irritation. It may also cause an allergic skin reaction. Handle with appropriate personal protective equipment (gloves, eye protection, respiratory protection) in a well-ventilated area. Refer to the Safety Data Sheet (SDS) for comprehensive safety information.
Is 3,4-Diamino-5-bromopyridine a controlled substance?
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Based on the provided data, there is no indication that 3,4-Diamino-5-bromopyridine is a controlled substance.
How is 3,4-Diamino-5-bromopyridine packed and exported?
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3,4-Diamino-5-bromopyridine is carefully packed to ensure safe transit and is available for global export by Tech Serve Solutions.
How can I request a sample or quote for 3,4-Diamino-5-bromopyridine?
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To request a sample or quote, please contact our sales team through the website or by phone. Specify the product name (3,4-Diamino-5-bromopyridine) and CAS number (4635-08-9).
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