4-Propylphenylboronic Acid CAS 134150-01-9: A Buyer’s Guide to Uses, Specifications, and Supply

4-Propylphenylboronic acid, CAS 134150-01-9, is an aryl boronic acid used primarily as a building block in organic synthesis. Its boronic acid group can participate in palladium-catalyzed cross-coupling reactions, including Suzuki–Miyaura chemistry, while the propyl-substituted aromatic ring contributes a defined hydrophobic and electronic profile. I recommend evaluating this material by identity, assay, water content, appearance, packaging, documentation, and supply reliability rather than by price alone.

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At Maison Chemical, I support buyers who need this intermediate for research, process development, custom synthesis, or commercial sourcing. The molecular formula is generally represented as C₉H₁₃BO₂, with a calculated molecular weight of approximately 164.01 g/mol. Because specifications can vary by manufacturing route and intended use, the current product specification and certificate of analysis should always control the purchasing decision.

Who This Guide Is For

This guide is intended for procurement teams, medicinal chemistry groups, pharmaceutical development laboratories, agrochemical researchers, specialty chemical manufacturers, and distributors evaluating 4-Propylphenylboronic acid. It is also relevant to buyers comparing laboratory-scale material with larger-volume production supply. I focus on practical selection questions: what the compound does, which specifications matter, how to assess suppliers, and what information should be confirmed before an order.

What 4-Propylphenylboronic Acid Is

4-Propylphenylboronic acid is an aromatic boronic acid in which a propyl group is positioned para to the boronic acid functionality on the phenyl ring. The boronic acid group is the key reactive site, and its behavior makes the compound useful for forming carbon–carbon bonds with suitable aryl or heteroaryl partners. CAS 134150-01-9 is the primary identifier buyers should use when requesting quotations or checking purchasing records.

Like other boronic acids, this compound may be sensitive to storage conditions, moisture exposure, and prolonged handling outside its recommended packaging. Commercial appearance and stability can depend on purity, residual solvent, water content, particle characteristics, and container closure. For that reason, I advise buyers to rely on a current specification sheet, SDS, and batch-specific COA instead of assuming that every source offers identical material.

Common Uses and Application Scenarios

Suzuki–Miyaura and Related Cross-Coupling

The most important application is use as an aryl-boron reagent in cross-coupling chemistry. In a suitable reaction system, the boronic acid functionality can provide the aryl fragment required to construct biaryl, aryl-heteroaryl, or related carbon–carbon bonds. The actual reaction performance depends on the coupling partner, catalyst, base, solvent, temperature, concentration, and work-up procedure, so I do not treat the product as a guaranteed solution for every synthetic route.

Medicinal and Process Chemistry

Research chemists may select 4-Propylphenylboronic acid when a propyl-substituted aromatic group is required in a compound design or analog series. It can be useful during structure–activity relationship studies, route scouting, and preparation of advanced intermediates. For process development, buyers should assess not only reaction conversion but also impurity clearance, filtration behavior, isolation, and reproducibility across multiple batches.

Specialty and Custom Synthesis

Specialty chemical manufacturers may use this material as an intermediate rather than as a final active ingredient. Its value is therefore connected to the downstream structure being produced and the process requirements of that structure. When the material is intended for a regulated or quality-sensitive project, the buyer should communicate the final application early so the supplier can confirm available documentation and manufacturing suitability.

Material and Specification Overview

The first specification to confirm is chemical identity. The requested identity should include the product name, CAS number 134150-01-9, molecular formula, molecular weight, and suitable analytical data such as HPLC, NMR, or other methods agreed between buyer and supplier. I recommend confirming whether the quoted material is the intended para-substituted isomer and whether any positional isomers are controlled in the specification.

Many buyers use an assay target such as 98% or higher for research and intermediate applications, but this should be treated as a purchasing requirement rather than an assumed fact about every available batch. The appropriate limit depends on the reaction and downstream purification strategy. If the material will enter a sensitive process, I recommend requesting the exact analytical method, chromatogram availability, and representative impurity data before approving a supplier.

How to Match the Material to Your Application

Step 1: Define the Reaction Requirement

Begin by identifying the coupling partner, intended product, catalyst system, and expected scale. A reagent that performs well during milligram-scale discovery work may require additional evaluation at gram or kilogram scale. I also recommend checking whether the process is sensitive to boronic acid degradation, water, residual solvents, or trace metals.

Step 2: Set a Practical Specification

Specify the minimum assay, maximum water content, acceptable residual solvents, appearance, and packaging format. Avoid requesting limits that are unrelated to the process, because unnecessarily tight specifications can increase cost and reduce supply options. At the same time, do not omit attributes that could affect reaction reproducibility or downstream purification.

Maison Chemical supply professional and honest service.

Step 3: Request a Representative Document Package

Before placing a larger order, ask for a current COA, SDS, product specification, and available analytical information. The COA should identify the batch and show the tested result against the agreed limits. If a buyer needs a particular analytical technique, that requirement should be discussed before production rather than after shipment.

Step 4: Confirm Packaging and Logistics

Packaging should protect the material from moisture, contamination, and unnecessary exposure during transport. The buyer should confirm net weight, inner and outer packaging, labeling, storage instructions, shipping terms, and destination requirements. Lead time is order-dependent; as a planning reference, buyers may request an estimated dispatch window in business days, but the supplier should confirm the actual schedule for the selected quantity and batch.

Key Buyer Selection Factors

Price is only one part of the total sourcing decision. A lower unit price may not be favorable if the supplier cannot provide consistent documentation, stable packaging, responsive technical communication, or repeat-batch availability. I recommend comparing suppliers across identity control, analytical transparency, production experience, quality response, logistics capability, and commercial flexibility.

• Identity and purity: Confirm CAS number, isomer assignment, assay, and related substances.
• Batch consistency: Ask whether repeat orders can be supplied against comparable specifications.
• Documentation: Review the COA, SDS, specification, and any required shipping documents.
• Quantity flexibility: Separate laboratory sample pricing from production-volume pricing.
• Packaging: Confirm container type, sealing, labeling, and storage recommendations.
• Communication: Evaluate how clearly the supplier answers technical and commercial questions.

Pricing, MOQ, and Lead-Time Considerations

The price of 4-Propylphenylboronic acid can vary with assay, order quantity, packaging, production route, testing requirements, and destination. A quotation should therefore state the quantity, specification, delivery term, currency, validity period, and whether analytical or documentation charges apply. I advise buyers to compare like-for-like offers instead of comparing a sample price with a bulk price.

Minimum order quantity is also supplier- and project-dependent. Some buyers need only a small amount for route screening, while others require a larger quantity for process development or manufacturing. At Maison Chemical, I can review the requested quantity, target specification, destination, and schedule before recommending the most practical supply option.

Common Purchasing Mistakes

One common mistake is ordering solely by product name without confirming the CAS number and isomer. Another is accepting a generic purity statement without checking the analytical method, batch number, or impurity limits. Buyers should also avoid assuming that a material tested successfully in one reaction will behave identically in another process with different catalyst, base, solvent, or work-up conditions.

A further mistake is leaving packaging and documentation until the shipment is ready. Storage instructions, export paperwork, labeling, and destination restrictions can affect the timeline. I recommend agreeing these details during quotation review, particularly when the material is intended for international shipment or a controlled internal quality system.

How Maison Chemical Supports Buyers

Maison Chemical supplies organic boronic acids and supports B2B purchasing for research and manufacturing workflows. I can help clarify product identity, available specification, quantity options, packaging, documentation, and delivery planning. Where a buyer has a defined process requirement, I prefer to review that requirement directly rather than making unsupported performance claims.

For a quotation, send the requested quantity, target assay, destination, required documents, preferred packaging, and expected delivery date. If you are still screening the route, include the intended application and scale so the discussion can focus on suitable commercial and technical information. A clear inquiry helps us provide a more useful response and reduces avoidable revisions.

Key Takeaways

• 4-Propylphenylboronic acid, CAS 134150-01-9, is an aryl boronic acid used mainly in organic synthesis and cross-coupling research.
• The commonly represented formula is C₉H₁₃BO₂, with an approximate molecular weight of 164.01 g/mol.
• Identity, isomer control, assay, water, residual solvents, packaging, and batch documentation should be reviewed before purchase.
• A purity target such as 98% or higher must be agreed as a specification; it should not be assumed without a current COA.
• The best supplier decision balances technical suitability, documentation, repeatability, MOQ, lead time, and total sourcing risk.

Conclusion and Next Steps

For buyers asking whether 4-Propylphenylboronic acid CAS 134150-01-9 is suitable for their project, the answer is generally yes when the intended route requires a para-propyl aryl boronic acid building block and the supplier can meet the required specification. The final decision should be based on confirmed identity, analytical results, application needs, packaging, and supply terms. Reaction validation remains necessary because performance depends on the complete process, not the reagent name alone.

As the next step, prepare your quantity, target assay, application scale, documentation requirements, and delivery destination. Contact Maison Chemical for a product review and quotation based on those details. I will help you evaluate the available supply option in a practical, specification-focused way.

Are you interested in learning more about 4-Propylphenylboronic acid CAS 134150-01-9? Contact us today to secure an expert consultation!