3,4-Dichlorophenylboronic acid, CAS 151169-75-4, is an aromatic boronic acid intermediate used mainly in research, medicinal chemistry, and small-molecule synthesis. Its key identifying specifications include the CAS number 151169-75-4, molecular formula C6H5BCl2O2, and a reported molecular weight of approximately 190.82 g/mol. I recommend that buyers confirm identity, assay, water content, appearance, packaging, and delivery terms with the supplier before placing a commercial order.
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This guide explains how I would evaluate the material, compare supplier offers, and prepare a practical inquiry. It is intended for procurement teams, laboratory managers, process development chemists, and distributors sourcing 3,4-Dichlorophenylboronic acid from Maison Chemical or another qualified chemical supplier.
I prepared this buying guide for customers who need more than a catalog name and a price. It is especially useful when a project requires a reliable supply of an aryl boronic acid for route scouting, medicinal chemistry, process research, or an intermediate screening program. It can also help distributors build a product file before discussing the material with downstream customers.
Buyers should use this information as a specification and sourcing framework rather than as a substitute for their internal quality procedures. The final purchase decision should be based on the current supplier specification, certificate of analysis, safety documentation, and the intended use of the material.
3,4-Dichlorophenylboronic acid is an aryl boronic acid containing a dichlorinated phenyl group and a boronic acid functional group. In synthetic chemistry, the boronic acid group can participate in palladium-catalyzed cross-coupling chemistry, including Suzuki-type reactions, to help form carbon–carbon bonds. The two chlorine substituents can also influence the electronic and steric behavior of the aromatic building block.
The product is commonly identified by its CAS number, 151169-75-4. Its molecular formula is C6H5BCl2O2, and the approximate molecular weight is 190.82 g/mol; buyers should still verify the exact values against the supplier’s current technical documentation before use in regulated or tightly controlled calculations.
| Item | Information to Confirm |
|---|---|
| Product identity | 3,4-Dichlorophenylboronic acid |
| CAS number | 151169-75-4 |
| Molecular formula | C6H5BCl2O2 |
| Approximate molecular weight | 190.82 g/mol |
| Quality information | Assay, impurity profile, water content, and analytical method |
| Commercial information | Pack size, MOQ, lead time, storage, and shipping terms |
A purchasing specification should separate confirmed identity data from lot-specific quality data. Identity data normally includes the chemical name, CAS number, formula, and molecular weight, while lot-specific information may include assay, appearance, residual solvents, water content, and chromatographic purity. I advise buyers not to assume that a catalog specification automatically applies to every production lot.
Ask the supplier to state the expected physical appearance and the identification tests used for release. Depending on the supplier’s quality system, identity may be supported by techniques such as nuclear magnetic resonance, infrared spectroscopy, mass spectrometry, or chromatography. The exact test package should be agreed according to the project’s technical and regulatory requirements.
Assay is important, but it should not be reviewed in isolation. I recommend asking for the analytical method, reporting basis, specified impurities, and whether the reported value is corrected for water or other measurable components. For route development, a standard research-grade specification may be sufficient, while process development or commercial manufacturing may require tighter impurity controls.
Buyers should also discuss possible related substances, residual solvents, inorganic residues, and water content where these could affect reaction performance. Boronic acids may require careful handling and storage because material condition can influence weighing, dissolution, and reproducibility. Any project with sensitive downstream chemistry should define acceptance criteria before the first order.
For medicinal chemistry, the main priorities are usually correct identity, dependable analytical data, practical pack sizes, and short response times. Small quantities may be preferred during early screening, while repeat availability becomes more important once a lead series is established. Buyers should confirm whether the supplier can support repeat lots with comparable specifications.
Process teams typically require more than a small research pack. They may need a defined impurity profile, consistent documentation, suitable packaging, and a realistic production schedule. I recommend requesting a representative specification, a recent certificate of analysis when available, and a discussion of scale-up quantities before finalizing the synthetic route.
Distributors should evaluate labeling, packaging integrity, storage guidance, shipping classification, and document availability. They should also clarify whether the product is supplied as a standard item or made against a specific production plan. A clear product file reduces the risk of inconsistent information between the original supplier and the downstream customer.
Start by defining the intended use, target quantity, acceptable pack sizes, required assay, and documentation level. A laboratory order of 25 g may require a different commercial approach from a process project requiring several kilograms. I recommend stating the expected annual demand when possible because it helps the supplier assess inventory and production planning.
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Compare the same parameters across supplier quotations rather than comparing price alone. At minimum, review identity, assay, impurities, water content, appearance, packaging, storage conditions, and the available analytical data. If two offers use different test methods or acceptance criteria, ask for clarification before treating them as equivalent.
Request the price basis, minimum order quantity, lead time, payment terms, delivery terms, and quotation validity period. Lead time should be written in business days or calendar days, because the two measurements can produce different planning outcomes. Also ask whether the quoted lead time begins after purchase order confirmation, payment, or technical approval.
A reliable supplier should be able to explain whether the material is stocked, produced periodically, or scheduled after order confirmation. I also recommend asking about repeat-order planning, batch documentation, and the process for handling a specification change. These points are particularly important when the compound becomes part of a validated or long-term synthesis route.
The price of 3,4-Dichlorophenylboronic acid can vary according to quantity, purity requirements, analytical package, packaging format, production route, and shipping destination. I do not recommend relying on a single public list price because it may not reflect the required grade or the actual commercial quantity. A written quotation based on a clear specification provides a more useful comparison.
MOQ should be considered together with shelf-life expectations, project consumption, and storage capacity. Ordering more material may reduce the unit price, but excessive inventory can increase handling and storage risks. For an urgent project, a smaller in-stock pack may be commercially preferable to a lower-priced production batch with a longer lead time.
As a practical planning example, buyers can ask suppliers to quote three quantity tiers such as 100 g, 1 kg, and 5 kg. These are quotation scenarios rather than guaranteed Maison Chemical pack sizes, and the available options must be confirmed for each inquiry. Comparing these tiers can reveal whether the supplier’s pricing structure supports a gradual move from research to process quantities.
Maison Chemical supports B2B sourcing for organic boronic acids, including 3,4-Dichlorophenylboronic acid CAS 151169-75-4. When I prepare an inquiry for a customer, I would include the requested quantity, target specification, destination, packaging preference, required documents, and desired delivery schedule. This gives the supplier enough information to respond with a technically relevant quotation instead of a generic price.
One common mistake is requesting only a product name and quantity without stating the application or documentation needs. Another is comparing a high-assay material with a lower-cost offer that uses different testing or impurity limits. Buyers should also avoid assuming that an available catalog listing means immediate stock, fixed lead time, or unlimited repeat supply.
Storage and transport requirements should be reviewed before purchase, especially when the material will be held for an extended period. The receiving team should check packaging condition, label information, lot number, and accompanying documents upon delivery. If the material is intended for a sensitive reaction, retain a sample according to the buyer’s internal quality procedure for possible investigation.
To begin, prepare a concise RFQ containing the CAS number, required quantity, target purity or specification, packaging, delivery destination, and documentation requirements. Ask Maison Chemical to confirm current availability, MOQ, lead time, commercial terms, and the analytical package supplied with the lot. If the project is moving toward scale-up, mention the expected future demand so the quotation can reflect a longer-term supply discussion.
After receiving the quotation, compare the technical and commercial information line by line. Confirm that the offered material matches CAS 151169-75-4 and that the proposed specification is appropriate for your intended chemistry. Request clarification on any missing data before issuing a purchase order.
3,4-Dichlorophenylboronic acid CAS 151169-75-4 is an aryl boronic acid intermediate whose purchase decision should be based on verified identity, appropriate quality requirements, complete documentation, and realistic supply terms. The core reference data are C6H5BCl2O2, approximately 190.82 g/mol, and CAS 151169-75-4. These identifiers are only the starting point; lot-specific assay, impurities, packaging, MOQ, and lead time must be confirmed with the supplier.
For a practical next step, send Maison Chemical your required quantity, application, target specification, destination, and delivery schedule. We can then review the request and provide the relevant product and commercial information for your sourcing decision.
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