When I evaluate a bulk purchase of 3,5-Dichlorophenylboronic acid, I start with identity, analytical documentation, and supply reliability rather than price alone. This compound is an aryl boronic acid identified by CAS No. 67492-50-6 and is commonly used as a building block in palladium-catalyzed Suzuki–Miyaura coupling and related organic synthesis. Its molecular formula is generally listed as C6H5BCl2O2, with a molecular weight of approximately 190.82 g/mol. The most suitable supplier should be able to provide a clear specification, batch-specific documentation, appropriate packaging, and a quotation matched to your quantity and destination.
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This guide is intended for pharmaceutical and agrochemical research teams, contract manufacturers, specialty chemical distributors, academic laboratories, and industrial procurement departments. It is especially relevant when the material is required repeatedly, when a project is moving from laboratory scale toward process development, or when multiple suppliers are being compared. I focus here on practical purchasing decisions rather than detailed reaction procedures.
Bulk procurement requires more than confirming a CAS number. The buyer must also establish the required quality grade, acceptable analytical limits, packaging format, shipping conditions, documentation package, and expected replenishment schedule. These factors can influence usable cost and project continuity as much as the quoted price per kilogram.
3,5-Dichlorophenylboronic acid is an aromatic boronic acid containing a phenyl ring substituted with chlorine atoms at the 3 and 5 positions and a boronic acid functional group. The boronic acid group can participate in carbon–carbon bond-forming chemistry, most notably cross-coupling with suitable aryl or vinyl halides under appropriate reaction conditions. The two chlorine substituents can also influence the electronic and physical behavior of the aromatic building block.
For procurement purposes, the name, CAS number, molecular formula, and molecular weight should be checked together. I recommend treating the CAS number as an important identifier, but not as a complete quality assessment. A supplier’s product label, certificate of analysis, and analytical results should all refer to the same material and batch.
| Item | What the Buyer Should Confirm |
|---|---|
| Product name | 3,5-Dichlorophenylboronic acid |
| CAS number | 67492-50-6 |
| Molecular formula | C6H5BCl2O2 |
| Molecular weight | Approximately 190.82 g/mol |
| Physical description | Confirm the supplier’s stated appearance and batch result |
| Quality grade | Research, synthetic, or process-specific grade as required |
The main application fit is as a synthetic intermediate or coupling partner in laboratory research and process chemistry. Buyers may use it for route screening, medicinal chemistry programs, discovery chemistry, or the preparation of more complex aromatic molecules. The required quality level can differ substantially between an exploratory experiment and a controlled manufacturing process.
I recommend separating product “type” from product “grade.” The chemical identity remains the same, while the grade may differ in purity target, impurity profile, packaging, documentation, and release testing. If your process is sensitive to trace metals, residual solvents, water content, or specific regioisomeric impurities, these requirements should be written into the request for quotation instead of being assumed.
First, I compare the supplier’s product name, CAS number, formula, molecular weight, and internal product code. The quotation should state whether the offered material is in stock, made to order, or supplied from a designated production batch. I also ask whether the quoted specification is a standard specification or a customer-specific release specification.
A batch-specific certificate of analysis is central to a responsible purchase. Depending on the application, I may request test results for assay or purity, appearance, water content, residual solvents, and selected elemental impurities, provided these tests are relevant to the buyer’s process. The COA should include a batch number, test date or release date, specification limits, actual results, and an authorized quality review.
For regulated or audited projects, additional documents may be required, such as a safety data sheet, technical data sheet, declaration of origin, statement regarding animal-derived materials, or export documentation. These documents should be requested before placing the order because availability can vary by product and destination. A supplier should clearly distinguish documents that are routinely available from documents that require additional review.
Packaging should protect the material from contamination, physical damage, and unsuitable exposure during storage and transport. I recommend confirming the inner container, outer packaging, net weight per unit, label information, and whether the supplier can provide smaller units for sampling before a larger shipment. The final packaging choice should follow the supplier’s safety data and the buyer’s receiving procedures.
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For international shipments, the quotation should identify the shipping term, dispatch location, destination, currency, and whether freight, insurance, customs charges, or taxes are included. Buyers should also confirm whether the supplier can support the required export documents and whether the destination has any special import requirements. A delivery estimate should be treated as a planning target until the order, batch, and shipping route are confirmed.
Minimum order quantity, price, and lead time should be evaluated together. A lower unit price may not be advantageous if the minimum quantity creates excessive inventory or if the batch cannot be delivered within the project schedule. I normally request tiered pricing for at least three quantities, such as 100 g, 1 kg, and 5 kg, while recognizing that actual availability and commercial terms must be confirmed by quotation.
Lead time can depend on stock status, production planning, quality release, packaging, and export preparation. Rather than relying on a generic number of days, I ask the supplier to state the estimated time for sample dispatch and the estimated time for bulk delivery separately. This approach gives procurement and technical teams a more realistic view of project risk.
One common mistake is selecting a product solely because the CAS number matches. Identity confirmation is necessary, but it does not establish that the material meets the purity, impurity, documentation, or packaging requirements of a specific process. Another mistake is requesting a price without stating the intended quantity, destination, quality grade, or required documents.
Buyers may also overlook the difference between a sample quotation and a bulk quotation. Small research-pack quantities can have different packaging, handling, and logistics economics than kilogram-scale orders. I recommend asking whether the sample and bulk material come from the same production route or whether a representative commercial batch can be provided for evaluation.
At Maison Chemical, we approach 3,5-Dichlorophenylboronic acid CAS 67492-50-6 as a specification-led B2B product. We can discuss the intended application, target quantity, preferred packaging, destination, and documentation requirements before preparing a quotation. This helps us distinguish a laboratory sample request from a repeat supply or process-development requirement.
Our commercial support can include product identification review, quotation preparation, packaging discussion, shipping coordination, and document confirmation. Where a customer has defined analytical requirements, I recommend sharing them before order confirmation so that feasibility can be reviewed clearly. Any specification, availability, lead time, and testing commitment should be confirmed in writing for the specific order.
To obtain a useful quotation, I recommend sending a concise but complete request. Include the product name, CAS number, required quantity, destination country, desired delivery date, quality target, packaging preference, and required documentation. If the material will enter a validated process, also include any critical impurity or analytical requirements that the supplier must review.
For bulk purchasing, the best supplier is not necessarily the one offering the lowest initial price. The stronger choice is the supplier that can consistently identify 3,5-Dichlorophenylboronic acid CAS 67492-50-6, document the agreed quality, package it appropriately, and communicate realistic supply conditions. Molecular identity, batch documentation, logistics, and commercial terms should be reviewed as one procurement decision.
My recommended next step is to prepare an RFQ using the checklist above and send it to Maison Chemical with your target quantity, destination, application grade, and documentation needs. We can then review the requirement and provide a product-specific quotation based on current availability and requested service conditions. Contact Maison Chemical for a tailored discussion of samples, bulk quantities, packaging, quality documents, and export support.
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