4-Propylphenylboronic Acid CAS 134150-01-9 Specifications and Procurement Guide

When I evaluate 4-Propylphenylboronic acid, CAS 134150-01-9 for procurement, I treat it as a specialty organic boronic acid used primarily as an aryl-boron building block in synthetic chemistry. Its main commercial value is its ability to participate in transition-metal-catalyzed carbon–carbon bond-forming reactions, especially Suzuki–Miyaura coupling, when the required reaction conditions are suitable. For purchasing, the most important factors are identity, assay, impurity profile, physical form, packaging, documentation, and supply continuity. Maison Chemical can support buyers by discussing specification targets, sample evaluation, quotation requirements, and export documentation based on the intended application.

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Who This Guide Is For

This guide is intended for pharmaceutical and agrochemical research teams, medicinal chemistry laboratories, process-development groups, chemical distributors, and procurement departments sourcing 4-Propylphenylboronic acid in laboratory or commercial quantities. It is also relevant to buyers comparing multiple suppliers for a new synthesis route or a recurring manufacturing program. I recommend using the framework below before requesting a quotation because the same CAS number does not automatically define every commercial specification. A clear technical inquiry helps suppliers provide a more useful and comparable offer.

Basic Chemical Context

4-Propylphenylboronic acid contains a boronic acid group attached to a para-propyl-substituted aromatic ring. The para-propyl substituent can contribute hydrophobic character and may be selected when a target molecule requires a specific steric or electronic profile. In synthetic planning, the boronic acid group is commonly used as a coupling handle for introducing the substituted aryl fragment into a larger molecular structure.

The commonly associated molecular formula is C₉H₁₃BO₂, with a calculated molecular weight of approximately 164.01 g/mol. Buyers should still confirm the formula, molecular weight, appearance, and analytical identification on the current certificate of analysis supplied for the actual batch. Boronic acids may be sensitive to storage conditions, moisture, and handling practices, so application-specific stability should be assessed rather than assumed.

Specifications Buyers Should Review

Identity and Composition

The first specification group should establish that the material is the intended compound and not a positional isomer or a related boronic acid. I normally ask for the CAS number, chemical name, molecular formula, molecular weight, structural confirmation, and batch-specific analytical data. A buyer may also request identification by techniques such as NMR, infrared spectroscopy, or mass spectrometry, depending on the quality system and use case.

Assay is another central purchasing point, but the stated method matters as much as the numerical result. A supplier should identify whether assay is determined by chromatographic area normalization, titration, or another validated or internally controlled method. If a project has a defined threshold, such as 98% or higher, that requirement should be stated in the inquiry rather than inferred from a general catalog description.

Impurity and Physical-Property Information

For process chemistry, buyers should review related organic impurities, residual solvents, water content, inorganic residues, and any unreacted starting materials that could affect the next reaction. The acceptable limits depend on the synthesis route, downstream purification, and regulatory expectations. I recommend requesting representative chromatographic information or a specification sheet when the material will be used in a sensitive or scale-up process.

Physical description is also useful for handling and dispensing. Ask whether the product is supplied as a powder, crystalline solid, or another defined form, and request the recommended storage temperature and packaging configuration. Melting behavior, water content, and particle characteristics may be relevant to process transfer, but these values should be confirmed from supplier documentation rather than treated as universal constants.

Matching the Material to the Application

In medicinal chemistry, the compound may be used as an aryl-boron reagent for preparing analogues and screening libraries. Small research quantities often prioritize fast sample availability, reliable identity data, and packaging suitable for repeated laboratory use. For these projects, a recent COA and a practical sample quantity may be more valuable than a large-volume commercial offer.

In process development, the assessment becomes broader. The team may need consistent assay, controlled impurities, repeatable physical handling, and sufficient lot size for reaction optimization and scale-up. I advise process chemists to test a representative lot under their actual coupling conditions because reaction performance can depend on catalyst, base, solvent, water content, concentration, and purification strategy.

For distributors and manufacturing buyers, continuity of supply becomes a major consideration. They should evaluate available pack sizes, production planning, shelf-life policy, export capability, and the supplier’s ability to communicate changes. A lower quoted price is not necessarily the lowest total procurement cost if the material requires additional testing, urgent freight, or repeated qualification.

A Practical Selection Framework

Step 1: Define the Intended Use

Start by stating whether the product is for discovery research, analytical development, process development, commercial manufacturing, or distribution. This information allows the supplier to distinguish between a standard research-grade request and a more controlled project specification. Also identify the approximate quantity, target delivery location, required delivery date, and whether a pre-shipment sample is needed.

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Step 2: Establish the Required Quality Level

Define the minimum assay, impurity limits, water or residual-solvent requirements, and analytical documents before comparing quotations. If the buyer has an internal specification, it should be shared in advance so the supplier can confirm feasibility. When no internal specification exists, a reasonable starting package may include identity confirmation, assay, appearance, batch number, manufacturing date, retest or review information, and storage guidance.

Step 3: Review Packaging and Logistics

Packaging should protect the material from unsuitable exposure during storage and transport while matching the buyer’s intended usage. Request the available package sizes, outer packaging, labeling format, net weight tolerance, and shipping conditions. For international shipments, also confirm the commercial invoice, packing list, certificate of analysis, safety data sheet, country-of-origin information where applicable, and any documents required by the importer.

Step 4: Confirm Commercial Terms

Ask suppliers to quote the exact grade, quantity, packaging, Incoterm, currency, payment conditions, and validity period. MOQ and lead time can vary with stock status, batch planning, packaging requirements, and destination. I recommend requesting both an in-stock option and a production option when timing is important, because the two may have different prices and delivery schedules.

Pricing, MOQ, and Lead-Time Considerations

Pricing for a specialty boronic acid is influenced by raw-material availability, synthesis route, batch size, analytical requirements, packaging, and destination. Rather than comparing price per kilogram alone, I suggest comparing the delivered cost for the required specification and quantity. A small research pack may have a higher unit cost, while a larger planned batch may require additional lead time and production coordination.

MOQ should be discussed early, particularly when the buyer requires custom packaging or a tighter impurity profile. Lead time is also not a fixed chemical property; it may change according to inventory, quality-release scheduling, production capacity, and shipping route. Buyers should request a written estimated lead time and clarify whether it begins at purchase-order acceptance, payment confirmation, or production release.

Common Procurement Mistakes

One frequent mistake is specifying only the CAS number without describing the application or quality requirement. Another is assuming that a catalog assay automatically satisfies a process specification without reviewing the analytical method and impurity profile. Buyers should also avoid delaying document review until after shipment, because discrepancies in labeling, packaging, or import paperwork can create avoidable receiving problems.

A further risk is purchasing a large quantity before evaluating a representative sample. For a new route, I recommend confirming solubility, reaction compatibility, work-up behavior, and analytical recovery in the buyer’s own laboratory. A modest qualification step can reveal whether the selected grade is appropriate before the project commits to a larger procurement volume.

How Maison Chemical Can Support Procurement

At Maison Chemical, I approach 4-Propylphenylboronic acid sourcing as a technical and commercial coordination task rather than a simple product lookup. We can discuss the requested quantity, target assay, packaging, documentation, destination, and delivery schedule before preparing a quotation. Where the project requires evaluation, buyers can ask about sample availability and the analytical documents accompanying the offered batch.

Our role is to help buyers convert a general material request into a clear purchasing specification. We can also clarify whether the request is being handled from available inventory or requires production planning, subject to current availability and order conditions. Final specifications, lead time, shipping terms, and documentation should always be confirmed in the formal quotation and batch records.

Key Takeaways

• 4-Propylphenylboronic acid, CAS 134150-01-9, is primarily evaluated as a substituted aryl-boron building block for synthetic chemistry.
• Confirm identity, assay method, impurities, water content, appearance, packaging, storage, and batch-specific documentation.
• Use the intended application to determine whether standard research material or a more controlled process specification is appropriate.
• Compare total delivered cost, MOQ, lead time, documents, and supply continuity rather than unit price alone.
• Qualify a representative sample before committing to a larger quantity when the material is being introduced into a new route.

Conclusion and Next Steps

The right way to procure 4-Propylphenylboronic acid CAS 134150-01-9 is to combine chemical identity confirmation with application-specific quality, logistics, and supplier evaluation. I recommend preparing a concise inquiry that includes the required quantity, assay target, impurity expectations, packaging, destination, delivery date, and document requirements. Then request a batch-specific COA, SDS, quotation, MOQ, and estimated lead time for direct comparison.

For a sourcing discussion with Maison Chemical, send the target quantity, intended use, required specification, preferred packaging, and destination. We can review the request and provide the available product information and commercial terms for your project. This structured approach helps reduce specification gaps and supports a more reliable decision on whether the offered grade is suitable for your synthesis or procurement program.

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