3,4-Dichlorophenylboronic Acid CAS 151169-75-4 Supplier Selection Guide

When I evaluate a supplier for 3,4-Dichlorophenylboronic acid, CAS 151169-75-4, I focus on five points: correct chemical identity, documented quality, dependable supply, complete compliance files, and practical packaging and logistics support. This compound is an aryl boronic acid used primarily as a building block in synthetic chemistry, including palladium-catalyzed Suzuki–Miyaura coupling and related research applications. Its commonly referenced molecular formula is C₆H₅BCl₂O₂, with a calculated molecular weight of approximately 190.82 g/mol. A suitable supplier should confirm the exact product identity and provide batch-specific documentation before commercial purchasing.

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Key Takeaways for B2B Buyers

• Confirm that the product is specifically 3,4-Dichlorophenylboronic acid and that the CAS number is 151169-75-4.
• Compare analytical documentation, including assay, water or moisture information where relevant, appearance, and impurity data.
• Review packaging, storage, transport classification, export documentation, and product stability requirements before placing an order.
• Ask about available quantities, minimum order quantity, production or replenishment lead time, and sample support.
• Choose a supplier that can communicate clearly and provide a consistent supply plan rather than evaluating price alone.

Who This Guide Is For

This guide is intended for pharmaceutical and agrochemical research teams, fine chemical manufacturers, contract development organizations, university laboratories, and purchasing departments sourcing organic boronic acids. It is also useful for companies comparing a small research-grade requirement with a larger process-development or manufacturing requirement. I recommend using the same evaluation framework for both situations, while adjusting the documentation and supply expectations to the intended scale. A small laboratory order may prioritize sample availability, whereas a production buyer may require repeatable batch quality and a defined supply schedule.

What Is 3,4-Dichlorophenylboronic Acid?

3,4-Dichlorophenylboronic acid is a chlorinated aryl boronic acid containing a boronic acid functional group and two chlorine substituents on the phenyl ring. The CAS Registry Number 151169-75-4 is an important identity reference, but it should not be the only item checked during qualification. I also compare the product name, molecular formula, molecular weight, structure representation, analytical description, and supplier lot information. These checks help prevent confusion with positional isomers or other chlorinated phenylboronic acid products.

In synthetic chemistry, the boronic acid group can participate in carbon–carbon bond-forming reactions, especially Suzuki–Miyaura coupling with suitable aryl or vinyl halides under appropriate reaction conditions. The dichloro substitution pattern can influence the electronic and steric behavior of the aromatic building block, which is why positional identity matters during route development. The material should be handled according to its supplier-provided safety data sheet and laboratory procedures. Application performance should be confirmed in the buyer’s own reaction system rather than assumed from the product name alone.

Product Specifications Buyers Should Confirm

A supplier selection decision should begin with a written specification rather than a general product description. At minimum, I request the product name, CAS number, molecular formula, molecular weight, appearance, assay method, and release criteria. For reference, the molecular weight associated with C₆H₅BCl₂O₂ is approximately 190.82 g/mol. If the supplier uses a different specification or test method, I ask for an explanation and assess whether the difference affects my application.

How to Match the Material to the Application

Research and Route Screening

For early research, I usually prioritize identity confirmation, sufficient purity for screening, small-pack availability, and responsive technical communication. A supplier should be able to provide a representative certificate of analysis and explain how the material is packaged. The buyer should record the lot number and retain the certificate with experimental data so that results can be traced later. If a reaction is highly sensitive, requesting a sample for internal evaluation is more reliable than selecting solely from a catalogue entry.

Process Development and Scale-Up

For process development, the evaluation must extend beyond a single successful sample. I look for consistency across lots, a defined quality specification, realistic production capacity, and a documented change-notification approach. Buyers should discuss forecast volumes, required delivery windows, packaging sizes, and whether the supplier can support repeat orders. A material that performs well once but cannot be replenished consistently may create avoidable development risk.

Commercial or Export Purchasing

Commercial procurement requires additional attention to shipping documents, labeling, customs information, packing configuration, and destination-country requirements. I ask the supplier to confirm whether the planned package size is suitable for the transport route and whether the SDS is available in the required language or format. I also verify the product description used on commercial documents before dispatch. These practical checks can reduce delays that are unrelated to the chemistry itself.

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A Practical Supplier Selection Framework

1. Confirm identity: Match the chemical name, CAS 151169-75-4, formula, molecular weight, and structure.
2. Define your specification: State the required assay, impurity expectations, packaging, and documentation before requesting quotations.
3. Request evidence: Review a representative COA, SDS, product specification, and available analytical information.
4. Assess supply capability: Ask about stock status, manufacturing or replenishment lead time, MOQ, available pack sizes, and forecast planning.
5. Review logistics: Confirm storage guidance, packaging protection, shipment terms, and export paperwork.
6. Evaluate communication: Measure how clearly and quickly the supplier answers technical and commercial questions.
7. Start with a controlled order: Where appropriate, qualify a sample or initial lot before committing to a larger purchasing schedule.

I do not treat a low quoted price as proof of better value. The total sourcing cost can also include testing, repacking, delayed delivery, rejected material, and additional technical clarification. For that reason, I compare quotations on an equivalent basis, including purity requirements, quantity, packaging, delivery term, documentation, and payment conditions. A transparent quote is more useful than a nominally lower price that excludes important supply details.

Pricing, MOQ, and Lead Time Questions

Prices for specialty organic intermediates can vary according to quantity, purity specification, packaging, production status, and destination. Because these variables change by project, I recommend requesting a quotation based on a defined quantity range rather than asking for a general catalogue price. Buyers should ask for pricing at the intended order size, as well as any difference between sample, laboratory, pilot, and larger commercial packs. The quotation should clearly state validity, delivery terms, and whether freight or export charges are included.

Minimum order quantity and lead time should be discussed at the beginning of the project. A supplier may offer a smaller quantity from available stock, while a larger quantity may require production planning and additional time. I also ask whether the quoted lead time begins after purchase order confirmation, payment, specification approval, or another milestone. This distinction is especially important when the compound is needed for a scheduled synthesis campaign.

Common Supplier Selection Mistakes

• Relying on the chemical name without checking the CAS number and positional isomer.
• Comparing assay percentages without checking the analytical method or impurity profile.
• Requesting a price before defining quantity, packaging, delivery location, and documentation needs.
• Assuming that a sample result guarantees identical performance in future production lots.
• Ignoring SDS, labeling, storage, and transport requirements until the shipment is ready.
• Failing to establish how specification changes, production changes, or out-of-specification events will be communicated.

How Maison Chemical Can Support Your Evaluation

At Maison Chemical, I approach 3,4-Dichlorophenylboronic acid sourcing as a documented B2B procurement process rather than a simple product transaction. We can discuss the required CAS number, target quantity, specification expectations, packaging preference, delivery destination, and documentation needs before preparing a quotation. Our role is to help buyers determine whether the available product and supply arrangement fit their application and purchasing plan. Any final specification, availability, lead time, and commercial term should be confirmed for the specific inquiry.

For a meaningful evaluation, please provide the required quantity, intended use or development stage, target assay if defined, preferred pack size, destination country, and requested delivery date. I can then help organize the relevant product information and identify the points that require confirmation before ordering. If your project involves repeat purchasing, sharing an estimated forecast can support a more practical supply discussion. This approach allows both sides to address technical and commercial requirements early.

Conclusion: Choosing the Right Supplier

The right supplier for 3,4-Dichlorophenylboronic acid CAS 151169-75-4 is the one that can demonstrate correct identity, fit-for-purpose quality, reliable supply planning, suitable documentation, and clear logistics support. I recommend qualifying the material against a written specification and reviewing the COA and SDS before purchase. For scale-up or repeat use, I also evaluate lot consistency, MOQ, lead time, packaging, and communication practices. These steps provide a stronger basis for supplier selection than price or catalogue availability alone.

Your next step is to send Maison Chemical your required quantity, quality target, package preference, destination, and timeline. We can then discuss the appropriate supply option and the documents needed for your internal approval process. By aligning technical requirements with commercial and logistics conditions at the start, you can reduce sourcing uncertainty and make a more informed purchasing decision.

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