3-Bromo-1-methyl-1H-pyrazole
3-Bromo-1-methyl-1H-pyrazole (CAS: 151049-87-5) is a halogenated heterocyclic building block with the molecular formula C4H5BrN2 and a molecular weight of 161.00 g/mol. This compound is a key intermediate in organic synthesis, particularly for the construction of more complex pyrazole derivatives. It is supplied by Tech Serve Solutions for research and development purposes, enabling advancements in chemical synthesis and medicinal chemistry.

Organic Synthesis Intermediate
Utilised as a versatile building block in multi-step synthetic routes for the creation of novel organic molecules. Its bromo substituent offers a reactive site for various coupling reactions.
Medicinal Chemistry
Serves as a scaffold or precursor in the development of potential pharmaceutical agents. Pyrazole cores are prevalent in many biologically active compounds.
Materials Science Research
Can be incorporated into the synthesis of functional materials where specific electronic or structural properties are desired. Its heterocyclic nature contributes to unique material characteristics.
| Molecular weight | 161.00 |
|---|---|
| Empirical formula | C4H5BrN2 |
| Flash point | 106 °C / 222.8 °F |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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-1-methyl-1H-pyrazole used for?
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3-Bromo-1-methyl-1H-pyrazole is primarily used as a building block in organic synthesis and in medicinal chemistry research for the development of new compounds.
What are the CAS number and chemical formula for 3-Bromo-1-methyl-1H-pyrazole?
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The CAS number is 151049-87-5 and the chemical formula is C4H5BrN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound for research and development. The specific grade and purity should be confirmed with your sales representative, as TSS does not represent it as USP, BP, or EP grade.
How should 3-Bromo-1-methyl-1H-pyrazole be handled safely?
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3-Bromo-1-methyl-1H-pyrazole is classified under GHS with hazard statements including H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment in a well-ventilated area. Refer to the Safety Data Sheet for full details.
Is this chemical a controlled substance?
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The provided data does not indicate that 3-Bromo-1-methyl-1H-pyrazole is a controlled substance.
How is 3-Bromo-1-methyl-1H-pyrazole packed and shipped?
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This chemical is carefully packed according to international shipping regulations for hazardous materials and exported globally by TSS.
How can I request a sample or quote for 3-Bromo-1-methyl-1H-pyrazole?
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To request a sample or a quote, please contact our sales team via the details provided on the Tech Serve Solutions website.
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