1-(4-Bromophenyl)-3-phenylpyrazole-4-propionic acid
1-(4-Bromophenyl)-3-phenylpyrazole-4-propionic acid (CAS 75821-70-4; C18H15BrN2O2; molar mass 371.23 g/mol) is a halogenated pyrazole building block supplied as a crystalline solid. Combining an aryl bromide, a 1,3-diaryl pyrazole core and a pendant propionic acid chain, it offers three handles for further functionalisation. Tech Serve Solutions supplies this reagent-grade compound (assay 97%) to research, discovery-chemistry and fine-chemical laboratories worldwide.
- Synonyms
- 1-(4-Bromophenyl)-3-phenylpyrazole-4-propionic acid1-(4-Bromophenyl)-3-phenyl-1H-pyrazole-4-propanoic acid3-[1-(4-bromophenyl)-3-phenyl-1H-pyrazol-4-yl]propanoic acidCAS 75821-70-4MFCD07784414
Heterocyclic building block
Used as a 1,3-diaryl pyrazole scaffold in multistep organic synthesis, where the substituted pyrazole core serves as a starting point for more elaborate molecules.
Cross-coupling substrate
The 4-bromophenyl group provides an aryl-bromide site suited to palladium-catalysed cross-coupling reactions such as Suzuki, Heck or Buchwald-Hartwig chemistry for installing further aryl, vinyl or amine groups.
Carboxylic acid functionalisation
The pendant propionic acid chain offers a reactive handle for amide and ester formation, salt preparation or conjugation, allowing the scaffold to be linked to other fragments.
Medicinal and discovery chemistry
As a functionalised pyrazole intermediate it is of general interest in pharmaceutical and agrochemical discovery programmes for preparing screening libraries and analogues. Specific end-uses depend on the customer's own research.
Reference and analytical use
Supplied with a defined assay and melting point, the material can serve as a characterised intermediate for method development and analytical comparison in laboratory settings.
| Molecular weight | 371.23 |
|---|---|
| Empirical formula | C18H15BrN2O2 |
| Assay | 97% |
| Melting point | 143-147 °C |
Hazard statements
- H413May cause long-lasting harmful effects to aquatic life
| 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 1-(4-Bromophenyl)-3-phenylpyrazole-4-propionic acid used for?
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It is used mainly as a heterocyclic building block in organic and medicinal chemistry. The aryl-bromide site supports palladium-catalysed cross-coupling, while the propionic acid group allows amide, ester and conjugation chemistry, making it a versatile pyrazole intermediate for synthesis and discovery work.
What is the CAS number and molecular formula of 1-(4-Bromophenyl)-3-phenylpyrazole-4-propionic acid?
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Its CAS number is 75821-70-4 and its molecular formula is C18H15BrN2O2, with a molecular weight of 371.23 g/mol. The MDL number is MFCD07784414 and the reported melting point is 143-147 C.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product as a research and reagent grade material with a typical assay of 97%. It is offered for laboratory, research and manufacturing use; we do not represent it as USP, BP or EP pharmacopoeial grade. A certificate of analysis can accompany each batch on request.
What are the safety and handling requirements for this compound?
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The compound carries hazard statement H413 (may cause long-lasting harmful effects to aquatic life) and has a German Water Hazard Class (WGK) of 3, indicating it is severely hazardous to water. Avoid release to the environment, drains and watercourses, handle with standard laboratory precautions and personal protective equipment, and dispose of it in accordance with local regulations. Always consult the Safety Data Sheet before use.
How is 1-(4-Bromophenyl)-3-phenylpyrazole-4-propionic acid packed, shipped and exported?
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It is packed as a solid in securely sealed containers sized to the order, from gram quantities to larger research lots, with appropriate labelling and documentation. As a global supplier and exporter, Tech Serve Solutions arranges compliant international shipping and the required export paperwork, including the Safety Data Sheet.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity and destination, quoting CAS 75821-70-4, and our team will confirm availability, packing options, lead time and export details for your sample or bulk order.
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