5-Amino-4-bromo-3-methylpyrazole hydrobromide
5-Amino-4-bromo-3-methylpyrazole hydrobromide (CAS: 167683-86-5) is a heterocyclic organic compound with the molecular formula C4H6BrN3 · HBr and a molecular weight of 256.93 g/mol. As a brominated pyrazole derivative, it serves as a valuable building block in organic synthesis, particularly for the construction of more complex molecular architectures. Its applications are primarily in research and development within the chemical and pharmaceutical sectors.
- IUPAC
- 3-Amino-4-bromo-5-methyl-1H-pyrazole hydrobromide,3-Amino-4-bromo-5-methylpyrazole hydrobromide
- Synonyms
- 3-Amino-4-bromo-5-methyl-1H-pyrazole hydrobromide3-Amino-4-bromo-5-methylpyrazole hydrobromide

Organic Synthesis Intermediate
This compound is frequently employed as a key intermediate in the synthesis of novel organic molecules. The presence of the bromine atom and the pyrazole core allows for diverse chemical transformations, enabling the development of new chemical entities.
Pharmaceutical Research
It finds utility in the early stages of drug discovery and development, serving as a precursor for potential therapeutic agents. Its structure is amenable to modifications that can lead to compounds with desired pharmacological properties.
Heterocyclic Chemistry
As a substituted pyrazole, it is a useful reagent for researchers specialising in heterocyclic chemistry. It can be incorporated into larger ring systems or used to explore structure-activity relationships of pyrazole-containing compounds.
| Molecular weight | 256.93 |
|---|---|
| Empirical formula | C4H6BrN3 · HBr |
| Melting point | 166-180 °C |

Hazard statements
- H302Harmful if swallowed
| Water hazard class (WGK, DE) | 3 |
|---|---|
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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 5-Amino-4-bromo-3-methylpyrazole hydrobromide used for?
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5-Amino-4-bromo-3-methylpyrazole hydrobromide is primarily used as a building block in organic synthesis and in pharmaceutical research for the development of new chemical entities.
What are the CAS number and formula for this chemical?
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The CAS number is 167683-86-5 and the molecular formula is C4H6BrN3 · HBr.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound as a research or technical grade chemical. We do not represent it as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated. Please refer to the product specifications for available purity levels.
What are the safety and handling precautions for this chemical?
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This compound is classified as harmful if swallowed (H302) and carries a Warning signal word. Handle with appropriate personal protective equipment in a well-ventilated area. Consult the Safety Data Sheet (SDS) for comprehensive safety information.
Is this chemical suitable for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 5-Amino-4-bromo-3-methylpyrazole hydrobromide, adhering to all relevant shipping and customs regulations.
How can I request a sample or quote?
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To request a sample or a quotation for 5-Amino-4-bromo-3-methylpyrazole hydrobromide, please contact our sales department via the website or provide your details through the enquiry form.
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