3,5-Dimethylphenylboronic Acid CAS 172975-69-8: Product Guide, Uses, and Buying Information

3,5-Dimethylphenylboronic acid, CAS 172975-69-8, is an arylboronic acid used as an organic building block, particularly in palladium-catalyzed carbon–carbon coupling research and synthesis. Its molecular formula is C₈H₁₁BO₂, and its molecular weight is approximately 149.98 g/mol. Buyers should confirm that the identity, assay, analytical documentation, and quantity offered meet their process requirements before ordering. This guide explains where the compound may fit, how to assess its specifications, and what to ask a supplier such as Maison Chemical.

Please visit our website for more information on this topic.

Who This Guide Is For

This guide is intended for procurement teams, process chemists, research laboratories, and chemical manufacturers evaluating 3,5-Dimethylphenylboronic acid for a defined synthesis or development project. It is useful when you need to verify product identity, compare supplier offers, or prepare an inquiry for a particular quantity and specification. It is not a substitute for a reaction-specific literature review or a safety assessment. Suitability depends on the intended transformation, reaction conditions, and the requirements of the finished product.

Product Identity and Basic Context

What the name and CAS number identify

The compound is a phenylboronic acid derivative with methyl substituents at the 3 and 5 positions of the aromatic ring. The CAS Registry Number, 172975-69-8, is a key identifier to include in supplier inquiries because it helps distinguish the requested substance from related boronic acids and positional isomers. The molecular formula, C₈H₁₁BO₂, and approximate molecular weight of 149.98 g/mol provide additional checks for catalog and documentation review. Confirm all identifiers against the supplier’s current product specification and batch documents.

Role in organic synthesis

Arylboronic acids are commonly used as coupling partners in Suzuki–Miyaura cross-coupling reactions, which can form carbon–carbon bonds between an aryl group and a suitable coupling partner. In this context, 3,5-Dimethylphenylboronic acid can provide a 3,5-dimethyl-substituted phenyl group when the selected substrate and reaction conditions are compatible. The compound’s identity alone does not establish that a particular reaction will proceed efficiently. Researchers should evaluate catalyst, base, solvent, temperature, substrate compatibility, and work-up requirements for their own reaction.

Applications and Application Matching

Potential uses include the preparation of substituted biaryl compounds and other aromatic intermediates for research or chemical development. These intermediates may be explored in medicinal chemistry, materials research, or broader fine-chemical synthesis, depending on the target structure and project. Such examples describe possible synthetic roles, not guaranteed commercial applications or validated performance in a specific formulation. A buyer should match the compound to a documented route or a planned feasibility study rather than infer suitability from the product name alone.

Questions to ask before choosing it

• Does the target structure require a 3,5-dimethyl-substituted aryl group?
• Does the proposed route call for an arylboronic acid, or would another coupling partner be more appropriate?
• Have the catalyst system and reaction conditions been evaluated for the specific substrate?
• Are impurities, residual solvents, or trace metals subject to defined limits in the project?

These questions help separate a genuine product requirement from a name-based search. If the synthetic route is still under development, consider discussing a small evaluation quantity before planning a larger purchase. As a planning example rather than a standard package offer, a team might budget 1–5 g for initial reaction screening and determine later whether a larger quantity is justified. Confirm actual pack sizes and availability with the supplier.

Specification and Material Options

Commercial specifications can vary by supplier, batch, and intended use, so do not assume a particular assay, appearance, or packaging format without written confirmation. Ask for the current specification and a batch-specific Certificate of Analysis (CoA), where available. Review the stated analytical method, assay basis, and any reported impurity or moisture limits, and check that these align with your internal acceptance criteria. If a method or limit is essential, state it in the inquiry rather than relying on an informal description.

For early-stage work, a research or development specification may be adequate if the project’s acceptance criteria allow it. For a scale-up or controlled manufacturing process, buyers may need tighter limits, additional analytical information, or review of change-control expectations. These requirements should be agreed before order placement. Availability of customized documentation or specifications must be confirmed for the requested lot.

Buyer Selection Framework

Evaluate technical fit first

Begin with the exact chemical identity and intended use, then define the minimum acceptable assay and any critical impurity limits. Consider how the compound will be tested on receipt and what documentation your quality process requires. If the reaction is sensitive to water or particular impurities, discuss those concerns with the supplier and establish acceptance criteria that can be measured. Do not treat a supplier’s general product description as proof that a material meets an unshared project specification.

If you want to learn more, please visit our website Maison Chemical.

Compare commercial terms clearly

Price comparisons are meaningful only when the offered assay, quantity, packaging, delivery basis, and documentation are comparable. Request a quotation for the required quantity and ask whether the quote covers the same specification and lot conditions you need. Minimum order quantity (MOQ) and lead time are supplier- and order-specific; neither should be assumed from a catalog listing. For planning purposes, teams may model a 10–100 g pilot requirement as an example, but actual demand and available pack sizes should be confirmed directly.

For larger or repeat purchases, also ask how the supplier handles lot identification, reorders, and notification of relevant product or specification changes. Where your process requires a consistent profile, discuss whether the supplier can provide supporting batch documentation for each shipment. These questions help surface supply and quality expectations before they become schedule risks. They do not replace your own supplier qualification procedures.

Supplier Evaluation Checklist

• Can the supplier confirm CAS 172975-69-8 and provide a current product specification?
• Can the offered batch be accompanied by a CoA, and does it report the information your team needs?
• Are MOQ, quoted quantity, lead time, packaging, and shipping terms stated clearly?
• Can the supplier review a project-specific requirement before you place the order?
• Are safety, storage, and transport documents available where applicable to your shipment?

Ask for clarification when a listing does not state an assay, analytical method, or delivery estimate. Documentation should relate to the offered material rather than a generic description alone. If your organization requires specific quality or regulatory documents, identify them early and obtain confirmation before committing to a purchase. Supplier qualification remains the buyer’s responsibility and should follow internal procedures.

Common Buying Mistakes to Avoid

One frequent mistake is selecting a product based only on the chemical name while overlooking positional isomers or an incorrect CAS number. Another is comparing prices without checking whether the assay, pack size, and documentation are equivalent. Buyers can also underestimate the time needed for specification review, import or transport arrangements, and internal approval. Confirming these details at the inquiry stage helps reduce avoidable delays.

Do not assume that a standard grade is automatically suitable for a regulated, sensitive, or scaled process. Similarly, a successful small-scale reaction does not by itself establish supply consistency or process performance at a larger scale. Keep laboratory validation, quality review, and commercial sourcing as connected but distinct workstreams. Escalate any critical requirement before order confirmation.

How Maison Chemical Can Support Your Inquiry

At Maison Chemical, we can help B2B buyers review an inquiry for 3,5-Dimethylphenylboronic acid by confirming the requested identity, quantity, specification needs, and documentation expectations. Please include CAS 172975-69-8, your target quantity, destination, required assay or impurity criteria, and any requested documents. This information allows us to assess the request against current availability and provide relevant commercial details. Specific stock status, MOQ, lead time, and specification must be confirmed at the time of quotation.

Key Takeaways and Next Steps

3,5-Dimethylphenylboronic acid CAS 172975-69-8 is an arylboronic acid that may serve as a coupling partner in suitable synthetic routes, including selected Suzuki–Miyaura reactions. Its formula is C₈H₁₁BO₂, and its approximate molecular weight is 149.98 g/mol. Whether it is right for your project depends on reaction compatibility and the material specification your process requires. The practical next step is to confirm identity, define acceptance criteria, and request a batch-linked specification and quotation.

To request sourcing information from Maison Chemical, send your required quantity, destination, target specification, and documentation needs. If you are still at the screening stage, state that clearly so the offered quantity and information can be matched to an evaluation purchase. Review the resulting documents with your technical and procurement teams before placing the order. This approach gives you a clearer basis for both technical selection and purchasing decisions.

For more information, please visit 3,5-Dimethylphenylboronic acid CAS 172975-69-8.