4-Bromo-1-isobutylpyrazole
4-Bromo-1-isobutylpyrazole (CAS: 1184394-32-8) is a halogenated heterocyclic compound with the chemical formula C7H11BrN2 and a molecular weight of 203.08 g/mol. It serves as a valuable building block in organic synthesis, particularly within the C3-C9 and C7-C8 carbon range. This compound is primarily utilised in chemical research and development for the construction of more complex molecular architectures.

Organic Synthesis Intermediate
4-Bromo-1-isobutylpyrazole is employed as a key intermediate in the synthesis of various organic compounds. Its reactive bromine atom allows for diverse functionalisation through cross-coupling reactions and other synthetic methodologies.
Heterocyclic Chemistry Research
As a substituted pyrazole derivative, this compound is useful in academic and industrial research focused on heterocyclic chemistry. It aids in exploring novel pyrazole-based structures with potential applications.
Building Block for Complex Molecules
This chemical serves as a versatile building block for constructing larger, more intricate molecules. Its specific structure makes it suitable for applications requiring a pyrazole core functionalised with an isobutyl group and a bromine atom.
| Molecular weight | 203.08 |
|---|---|
| Empirical formula | C7H11BrN2 |
| Assay | 97% |
| Density | 1.332 g/mL at 25 °C |

Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
| Flash point | 103 °C / 217.4 °F |
|---|---|
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37/38 |
| Safety statements (S) | 26-39 |
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 4-Bromo-1-isobutylpyrazole primarily used for?
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4-Bromo-1-isobutylpyrazole is primarily used as a building block and intermediate in organic synthesis and heterocyclic chemistry research for the construction of more complex molecular architectures.
What are the CAS number and chemical formula for 4-Bromo-1-isobutylpyrazole?
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The CAS number for 4-Bromo-1-isobutylpyrazole is 1184394-32-8, and its chemical formula is C7H11BrN2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-1-isobutylpyrazole with an assay of 97%. TSS does not represent this product as USP, BP, EP, or for pharmaceutical, nutraceutical, or food use.
How should 4-Bromo-1-isobutylpyrazole be handled safely?
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4-Bromo-1-isobutylpyrazole is classified with GHS07 symbol and a Warning signal word. It has hazard statements H302 (Harmful if swallowed), H315 (Causes skin irritation), and H335 (May cause respiratory irritation). Handle with appropriate personal protective equipment (PPE) in a well-ventilated area, and avoid breathing dust/fume/gas/mist/vapours/spray. Specific precautionary statement is P261 (Avoid breathing dust/fume/gas/mist/vapours/spray).
Is 4-Bromo-1-isobutylpyrazole a controlled substance?
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The provided data does not indicate that 4-Bromo-1-isobutylpyrazole is a controlled substance.
How can I request a quote or sample of 4-Bromo-1-isobutylpyrazole?
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To request a quote or a sample of 4-Bromo-1-isobutylpyrazole, please contact the Tech Serve Solutions sales team through our website or by phone.
How is 4-Bromo-1-isobutylpyrazole typically shipped?
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Tech Serve Solutions exports and supplies fine chemicals like 4-Bromo-1-isobutylpyrazole, adhering to all necessary shipping and export regulations for hazardous materials.
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