4-Butylphenylboronic acid, also known as 4-n-butylphenylboronic acid, is an aryl boronic acid used as a synthetic building block in research and development. Its identifying details include CAS No. 145240-28-4, molecular formula C10H15BO2, and a calculated molecular weight of approximately 178.04 g/mol. As Maison Chemical, we help B2B buyers evaluate this material through identity confirmation, purity documentation, packaging review, delivery planning, and application-specific communication.
The best purchasing decision does not depend on the chemical name alone. Buyers should confirm the exact isomer, required purity, analytical documentation, packaging format, storage expectations, and intended use before placing an order. This guide explains the main evaluation points so procurement, R&D, quality, and logistics teams can request a complete and comparable quotation.
This guide is intended for pharmaceutical and agrochemical research teams, medicinal chemistry laboratories, custom synthesis companies, chemical distributors, and industrial procurement departments. It is also useful for buyers comparing multiple suppliers of organic boronic acids for laboratory or process-development work. The recommendations apply to planned purchases where traceability, repeatability, and supply communication matter as much as the unit price.
I recommend using this information during the early inquiry stage rather than waiting until an order is ready to ship. Early clarification can reduce avoidable differences between the requested material and the quoted material. It also gives the supplier enough information to confirm whether the requested grade, quantity, and documentation can be supported.
4-Butylphenylboronic acid contains an aryl boronic acid group and a para-butyl substituent on the aromatic ring. The boronic acid functionality is commonly used in carbon–carbon bond-forming chemistry, including palladium-catalyzed Suzuki-type coupling workflows, although the appropriate reaction conditions must be established by the user for each substrate and process. The butyl group modifies the electronic and physical characteristics of the aromatic building block compared with unsubstituted phenylboronic acid.
The confirmed identity should be treated as the starting point for procurement, not the complete quality specification. A buyer should ask for the supplier’s product name, CAS number, molecular formula, molecular weight, structure or isomer description, and batch-specific analytical information. Where the material is intended for regulated or highly controlled development, the buyer should also define documentation requirements before commercial discussion.
The phrase “butylphenylboronic acid” may be incomplete if the position of the butyl group is not stated. For CAS 145240-28-4, the requested material is generally identified as 4-butylphenylboronic acid, meaning the substituent is in the para position relative to the boronic acid group. I advise buyers to include both the full chemical name and CAS No. 145240-28-4 on purchase documents to reduce the risk of receiving a different positional isomer.
Purity should be agreed as a product specification rather than assumed from a catalog title. Depending on the application, buyers may request an HPLC or GC purity result, water or loss-on-drying information, residual solvent data, and an appearance description. A certificate of analysis should be linked to the actual batch supplied, and the acceptance criteria should be reviewed by the buyer’s quality team before ordering.
For a research application, a buyer may request a high-purity grade suitable for synthetic screening, while a process-development project may require tighter controls on specific impurities or residual solvents. I do not recommend using a generic “high purity” statement as the only quality criterion. The correct requirement depends on the reaction sensitivity, downstream purification, analytical method, and internal quality system.
Packaging should protect the product from contamination, moisture exposure, and handling damage. Buyers should specify the required pack size, outer packaging, labeling information, lot number, net quantity, and whether multiple inner containers are preferred. For a small laboratory order, several smaller containers may improve handling, while a process-development buyer may prefer a consolidated package if the material will be used promptly.
Storage instructions should be taken from the supplier’s current product documentation and aligned with the buyer’s own facility controls. The buyer should confirm whether the product requires protection from moisture, light, heat, or repeated container opening. Because storage conditions can affect material handling and stability, I recommend reviewing the supplier’s stated conditions instead of applying assumptions from another boronic acid product.
4-Butylphenylboronic acid may be considered when a project requires a para-substituted aryl boronic acid as a coupling partner or synthetic intermediate. Its suitability depends on the reaction design, substrate compatibility, catalyst system, solvent, base, temperature, and purification strategy. The compound name alone cannot guarantee performance in a particular transformation, so application screening remains the responsibility of the technical user.
For medicinal chemistry, buyers often prioritize consistent identity, reliable small-pack supply, and analytical documentation that supports rapid compound preparation. For custom synthesis and process research, repeat-batch consistency, larger pack availability, impurity visibility, and delivery planning may become more important. For distribution, the focus may shift toward commercial packaging, labeling, export documentation, and the ability to support recurring purchase schedules.
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Start by documenting the exact name, CAS number, isomer, desired purity, quantity, and intended application. Include whether the purchase is for screening, route development, scale-up, resale, or a regulated project. This information helps the supplier distinguish a standard catalog inquiry from a project requiring additional quality review.
Ask which documents are available with the shipment and which can be supplied before purchase. Typical requests may include a specification sheet, batch-specific certificate of analysis, safety data sheet, packing information, and commercial invoice details. If your organization requires additional declarations, such as origin or non-animal-derived statements, identify them during the quotation stage rather than after dispatch.
Compare price together with quantity, packaging, lead time, shipping terms, and documentation. A lower unit price may not represent better value if the minimum order quantity is unsuitable or if the delivery schedule does not fit the project. For an initial order, buyers should consider whether the supplier can provide a small evaluation quantity before a larger purchase commitment.
Delivery timing should be confirmed in writing because it can depend on stock status, order quantity, quality release, export handling, and destination requirements. Ask whether the quoted lead time is based on available stock or new production. A practical request should include destination country, required quantity, preferred packaging, and target arrival date.
Pricing for specialty organic boronic acids can vary according to purity, pack size, batch availability, production route, testing requirements, and shipping destination. There is no responsible way to provide one universal price without a specific quantity and delivery location. Buyers should request a written quotation showing the currency, price basis, minimum order quantity, validity period, packaging, and applicable freight or export charges.
Minimum order quantity is especially important when comparing research-scale and commercial supply. A supplier may be able to quote different options for 1 g, 10 g, 100 g, or larger quantities, but these pack sizes should never be assumed to be available without confirmation. Lead time should likewise be separated into stock release time and production time, because the two situations can have materially different planning implications.
At Maison Chemical, we use these questions to structure B2B inquiries and reduce ambiguity before quotation. We can discuss the required quantity, target specification, document package, packaging preference, and destination details as part of the sourcing process. Any final specification, availability statement, and delivery commitment should be confirmed against the current batch and order conditions.
One common mistake is ordering by a shortened name without confirming the CAS number or substitution position. Another is comparing quotations that use different purity definitions, pack sizes, or documentation levels. Buyers may also overlook the difference between a nominal lead time and the time required for quality release and international delivery.
A further risk is treating a supplier’s general product page as a substitute for batch documentation. Product information can describe the standard material, but the certificate of analysis should support the actual lot supplied. For projects involving sensitive reactions or downstream quality controls, I recommend reviewing representative analytical data and agreeing the acceptance criteria before purchase.
To begin an efficient inquiry, send the supplier the product name, CAS number, required quantity, target purity, intended use, destination, preferred packaging, and documentation requirements. If you have an internal specification, attach or summarize the critical tests and acceptance limits. This allows the supplier to return a more useful quotation instead of a generic price and availability statement.
For a first purchase, consider requesting a sample or small evaluation pack when the application allows it. After technical acceptance, discuss repeat-order conditions, forecast quantities, packaging continuity, and delivery windows. This staged approach can help your team balance technical suitability with commercial supply reliability.
The right way to buy 4-Butylphenylboronic acid CAS 145240-28-4 is to verify identity first, define the required quality level second, and then compare suppliers on documentation, packaging, delivery, and commercial terms. A supplier should be able to communicate what is available, what has been tested, and what conditions apply to the specific order. This approach is more dependable than selecting solely on catalog wording or unit price.
Maison Chemical welcomes inquiries from laboratories, manufacturers, distributors, and procurement teams seeking this organic boronic acid. Send us your required quantity, specification, packaging preference, destination, and target delivery schedule, and we can help you assess a suitable supply option and prepare a clear B2B quotation.
For more 4-Butylphenylboronic acid CAS 145240-28-4information, please contact us. We will provide professional answers.
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