4-Pyrazoleboronic Acid Pinacol Ester CAS 269410-08-4: Applications, Specifications, and Procurement Guide

4-Pyrazoleboronic acid pinacol ester, CAS 269410-08-4, is a pyrazole building block that carries a pinacol boronate group at the 4-position. Chemists use this boron-containing handle to explore carbon–carbon bond formation, including Suzuki–Miyaura coupling, when preparing pyrazole-containing intermediates and target molecules. For procurement, the key is to confirm identity, batch-specific quality data, packaging, and delivery terms against your intended reaction and project requirements. Maison Chemical can discuss product and sourcing details with B2B buyers; final specifications and availability should be confirmed for the requested batch and quantity.

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Key Takeaways

• This compound combines a pyrazole ring with a pinacol boronate coupling handle, making it a potential reagent for constructing substituted pyrazole derivatives.
• Its molecular formula is C₉H₁₅BN₂O₂, and its molecular weight is approximately 194.04 g/mol.
• Purity, analytical methods, packaging, and shipping conditions should be verified from the current batch documentation rather than assumed from the product name.
• A useful RFQ states the required quantity, target specification, destination, intended use, and any document or packaging requirements.

Who This Guide Is For

This guide is intended for procurement teams, process chemists, research organizations, and manufacturers evaluating CAS 269410-08-4 as a chemical building block. It is also useful for buyers comparing supplier quotations or preparing an internal material approval request. The information focuses on practical application fit and purchasing checks, not on prescribing a validated synthesis or reaction procedure. Confirm suitability for your specific process with your technical team and the supplier’s current product documentation.

Product Concept and Chemical Overview

The product is commonly described as 4-pyrazoleboronic acid pinacol ester or pyrazole-4-boronic acid pinacol ester. In structural terms, the pyrazole ring provides the nitrogen-containing heterocyclic framework, while the boronate ester provides a functional handle for selected coupling chemistry. The pinacol group is part of the boronate ester structure; it should not be confused with a separate stabilizer or solvent.

Identity Information to Confirm

Applications and Application Matching

The principal reason buyers evaluate this material is its potential use as a coupling partner for preparing substituted pyrazoles. In a suitable reaction system, the boronate functionality can participate in Suzuki–Miyaura cross-coupling with an appropriate organic halide or related coupling partner. The resulting product may support further research or development of pyrazole-containing compounds.

Potential use cases include medicinal chemistry research, pharmaceutical intermediate development, and broader heterocyclic synthesis. These are application categories, not guarantees of regulatory suitability or performance in a particular process. Buyers should verify that the compound’s identity, purity, impurity profile, and documentation meet the requirements of their own project and quality system.

Check the Chemistry Before Ordering

Pyrazole nitrogen atoms can affect reaction behavior, and the presence of an unprotected N–H may matter depending on the substrate, catalyst, base, and reaction conditions. A route that works for another heteroaryl boronate should not automatically be assumed to work for this product. Review the proposed transformation with your chemist, and consider whether a small-scale compatibility assessment is appropriate before committing to a larger quantity.

Specifications: What Buyers Should Request

A product name and CAS number establish a starting point, but they do not define every quality attribute needed for purchase. Ask the supplier for the current batch specification and available certificate of analysis (COA), and compare the stated results with your acceptance criteria. Do not assume a particular assay, appearance, impurity limit, or analytical method unless it is explicitly documented for the offered lot.

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Specification Checklist

• Identity: Ask which identification method or methods are used for the batch and how the result is reported.
• Assay or purity: State your required limit and preferred analytical basis, such as a specified chromatographic method, if your process requires one.
• Impurities: Identify any project-specific impurity limits or residual-solvent requirements before ordering.
• Appearance and handling: Request the supplier’s current description and handling guidance rather than relying on assumptions based on related compounds.
• Packaging: Confirm pack size, container type, labeling, and whether the proposed package suits your storage and dispensing process.
• Documents: Specify whether you need a COA, safety data sheet (SDS), specification sheet, or other available documentation.

Selection Framework for B2B Buyers

Start by matching the proposed material to the chemistry and quality level required by your project. Research use, route development, and process-scale purchasing may call for different assay limits, analytical evidence, packaging, or change-control expectations. Put those requirements into the RFQ so suppliers can quote against the same scope.

Build a Clear Request for Quotation

1. Identify the product: Provide the product name and CAS number 269410-08-4, and flag any required structural or naming convention.
2. State the quantity: Give the requested amount and note whether you are evaluating a sample, a development quantity, or repeat supply.
3. Define quality needs: Include your target assay, impurity limits, test methods, and document requirements where applicable.
4. Provide delivery details: Share the destination country or region, preferred shipping terms if known, and any relevant import or receiving constraints.
5. Ask for commercial terms: Request price, minimum order quantity (MOQ), packaging options, lead time, and quotation validity for the requested quantity.

Pricing, MOQ, and Lead Time

Price and availability for this specialty chemical can depend on requested quantity, batch availability, specification, packaging, and destination. MOQ and lead time are therefore quotation-specific; they should not be inferred from a catalog listing or from a previous order. Ask the supplier to confirm whether the offer is for available stock or planned supply, and whether the quoted schedule includes dispatch or estimated delivery.

For cost comparison, evaluate more than the unit price. A quotation that clearly states the batch, specification, documents, packaging, and delivery basis is easier to assess against your project needs. If your team requires a non-standard test or additional quality documentation, disclose that early because it may affect feasibility, timing, or cost.

Supplier Evaluation Checklist

Evaluate a supplier on the information it can substantiate for the specific product and offered lot. Confirm that the quotation, specification, and available batch documents identify the same material and that the commercial terms cover your requested quantity and destination. If your purchasing process has qualification requirements, communicate them before placing an order rather than assuming they are included.

• Can the supplier confirm the product identity and the offered batch’s stated specification?
• Are the COA and SDS available or obtainable for the quoted material?
• Are MOQ, pack size, lead time, and shipping basis stated clearly?
• Can the supplier discuss your required analytical or documentation needs before order confirmation?
• Are packaging, labeling, and handling details suitable for your receiving procedures?

Maison Chemical Supplier Support

Maison Chemical works with B2B buyers sourcing chemical intermediates and can discuss requirements for 4-Pyrazoleboronic acid pinacol ester CAS 269410-08-4. To support an efficient evaluation, include your target quantity, quality criteria, destination, and requested documents when contacting our team. We can then confirm applicable product information and quotation terms for your inquiry.

Conclusion and Next Steps

4-Pyrazoleboronic acid pinacol ester CAS 269410-08-4 is a pyrazole building block with a pinacol boronate group that may be useful in selected coupling applications. Whether it fits your project depends on reaction compatibility and on the offered batch meeting your documented quality requirements. The practical next step is to send a structured RFQ with quantity, specification, packaging, destination, and document needs.

Contact Maison Chemical to discuss your sourcing requirements and request current product and commercial information. Before purchase, review the batch documentation, confirm the agreed specification in writing, and align the delivery schedule with your project plan. This approach helps your team assess both technical fit and procurement suitability without relying on unconfirmed assumptions.