1-(4-Bromophenyl)-1H-pyrazole
1-(4-Bromophenyl)-1H-pyrazole (CAS 13788-92-6) is a brominated N-aryl pyrazole with the molecular formula C9H7BrN2 and a molar mass of 223.07 g/mol. In this aromatic heterocyclic building block a 4-bromophenyl group is bonded to the pyrazole nitrogen, leaving a reactive aryl bromide for further functionalisation. Tech Serve Solutions supplies and exports the compound as a research-grade synthesis intermediate used across pharmaceutical, agrochemical and fine-chemical discovery programmes.
- Synonyms
- 1-(4-Bromophenyl)-1H-pyrazole1-(4-Bromophenyl)pyrazole1-bromo-4-(1H-pyrazol-1-yl)benzene1H-Pyrazole, 1-(4-bromophenyl)-CAS 13788-92-6
Cross-coupling building block
The aryl carbon–bromine bond is a versatile handle for palladium-catalysed cross-coupling, including Suzuki–Miyaura, Buchwald–Hartwig, Sonogashira and Stille reactions. This allows the pyrazole core to be elaborated efficiently into more complex molecules.
Pharmaceutical intermediate
The pyrazole ring is a privileged scaffold in medicinal chemistry, and this brominated derivative serves as an intermediate in discovery and process routes toward biologically active candidates.
Agrochemical synthesis
N-Aryl pyrazoles feature widely in crop-protection research, where this halogenated building block supports the preparation of pyrazole-based actives and related candidate molecules.
Heterocyclic scaffold for discovery libraries
As a halogenated heterocyclic building block it is used to construct screening libraries and to support structure–activity studies, with the bromide enabling late-stage diversification.
Research and reference reagent
Supplied for laboratory research and method development, the compound serves as a defined intermediate and reference material in synthetic and analytical workflows.
| Molecular weight | 223.07 |
|---|---|
| Empirical formula | C9H7BrN2 |
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 1-(4-Bromophenyl)-1H-pyrazole used for?
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It is used mainly as a synthetic building block. The aryl bromide makes it a convenient substrate for palladium-catalysed cross-coupling, so it features in pharmaceutical, agrochemical and fine-chemical research where the pyrazole ring is a valued scaffold.
What is the CAS number and molecular formula of 1-(4-Bromophenyl)-1H-pyrazole?
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The CAS number is 13788-92-6 and the molecular formula is C9H7BrN2, corresponding to a molecular weight of 223.07 g/mol.
What grade and purity does Tech Serve Solutions supply?
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We supply 1-(4-Bromophenyl)-1H-pyrazole as a technical/research-grade synthesis building block. The exact assay and specification are confirmed on the certificate of analysis for each batch, and we do not represent it as a USP, BP or EP pharmacopoeial grade.
Is 1-(4-Bromophenyl)-1H-pyrazole hazardous, and how should it be handled?
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Handle it as a laboratory research chemical under good laboratory practice, using appropriate gloves, eye protection and adequate ventilation, and avoiding dust, skin and eye contact. The authoritative GHS hazard classification, precautionary statements and first-aid measures are provided in the Safety Data Sheet supplied with each consignment, which should be consulted before use.
How is 1-(4-Bromophenyl)-1H-pyrazole packed, shipped and exported?
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It is packed in sealed, suitably labelled containers, from gram quantities for research up to bulk packs, and shipped with full documentation including a certificate of analysis and Safety Data Sheet. Tech Serve Solutions exports worldwide and arranges packaging and transport in line with the applicable dangerous-goods and destination-country requirements.
How do I request a sample or quote?
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Contact Tech Serve Solutions with the quantity, required specification and your destination, and our team will respond with availability, lead time and a quotation. Samples can be arranged for evaluation and qualification.
Is 1-(4-Bromophenyl)-1H-pyrazole a controlled substance?
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It is offered as a research and manufacturing chemical and is not represented as a controlled or scheduled substance. Customers remain responsible for confirming import, export and end-use compliance in their own jurisdiction.
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