2,4-Difluoro-3-methoxybenzoic acid CAS 178974-97-5 Supplier and Purchasing Guide

I supply 2,4-Difluoro-3-methoxybenzoic acid, CAS 178974-97-5, as a pharmaceutical and specialty chemical intermediate for buyers who need controlled sourcing, clear documentation, and practical delivery coordination. The compound is an aromatic carboxylic acid containing two fluorine substituents and one methoxy group. Its commonly referenced molecular formula is C₈H₆F₂O₃, with a calculated molecular weight of approximately 188.13 g/mol; buyers should confirm these identity details against the current product specification and certificate of analysis before use.

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This guide explains how I recommend evaluating the material, comparing suppliers, requesting a quotation, and reducing procurement risk. Because commercial specifications can differ by production route, batch, packaging, and intended application, I do not recommend selecting a supplier on catalogue name alone. The most reliable purchasing decision connects the required quality level with the application, quantity, documentation, and delivery schedule.

Who This Guide Is For

This purchasing guide is intended for pharmaceutical intermediate buyers, medicinal chemistry teams, process development groups, contract manufacturers, distributors, and research organizations. It is also useful for procurement professionals who are sourcing a small development quantity before moving toward kilogram-scale or recurring supply. Each buyer may require a different balance of purity, analytical documentation, packaging, lead time, and commercial flexibility.

In my experience, the first question should not be “Who has the lowest price?” It should be “What evidence do I need to approve this material for my process?” A clear answer helps buyers avoid comparing products that carry the same CAS number but are offered under different quality, documentation, or supply conditions.

Basic Chemical Context

2,4-Difluoro-3-methoxybenzoic acid is a substituted benzoic acid used as an intermediate in synthetic chemistry. The carboxylic acid group provides a useful functional handle for downstream transformations, while the fluorine and methoxy substituents modify the electronic and steric character of the aromatic ring. Its exact value depends on the reaction sequence and the performance requirements of the buyer’s target molecule.

CAS 178974-97-5 is the primary identity reference used during supplier communication. I recommend that buyers check the CAS number together with the chemical name, molecular formula, molecular weight, structure, batch number, and analytical results. This combined verification is more robust than relying on a name match alone, particularly when a project involves multiple substituted aromatic acids.

Product and Specification Overview

A purchasing specification should distinguish between identity requirements, quality requirements, physical description, packaging, and analytical documentation. The following framework can be used when preparing an RFQ or comparing supplier responses. Values shown as requirements should be set by the buyer’s process and regulatory needs rather than assumed from a general catalogue listing.

The molecular weight of approximately 188.13 g/mol is useful for stoichiometric calculations, but it is not a substitute for an analytical release result. I advise buyers to request a batch-specific certificate of analysis and to confirm whether the reported assay is determined on an as-is basis or another stated basis. If a buyer needs a particular analytical technique, such as HPLC, NMR, GC, Karl Fischer, or elemental analysis, that requirement should be stated before quotation and not after shipment.

Matching the Material to the Application

For medicinal chemistry and early route development, buyers may prioritize fast sample availability, reliable identity confirmation, and flexible quantities. For process development, the emphasis usually shifts toward impurity control, reproducibility between batches, packaging suitability, and a realistic scale-up plan. For commercial or recurring use, supply continuity, change notification practices, production capacity, and logistics become equally important.

I recommend separating the material into three purchasing categories: development sample, pilot or process quantity, and routine production supply. A research sample may be ordered in a small pack, while a process team may require a larger quantity such as 1 kg or more; these are different commercial discussions and should not be evaluated using the same price assumptions. The right category also determines how much technical documentation and pre-shipment review is appropriate.

Questions for Application Matching

• Is the material being used for screening, route scouting, process development, or production?
• What assay and impurity limits are required for the intended reaction?
• Does the process require control of residual solvents, water, metals, or specific related substances?
• Will the material be stored for an extended period before use?
• Are there restrictions on packaging materials, transport conditions, or export documentation?

Supplier Selection Framework

When I evaluate a supplier, I look at four connected areas: product control, operational capability, documentation quality, and communication. A supplier should be able to identify the exact product, explain the available specification, provide relevant batch information, and give a quotation that clearly states quantity, packaging, lead time, and shipping terms. If any of these points remain unclear, the buyer should request clarification before placing a purchase order.

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Product and Quality Review

Ask whether the quoted material is available from current stock or requires production. Confirm the product grade, assay target, testing method, retest or expiry information when applicable, and whether the supplied COA is representative or batch-specific. I also recommend asking how specification changes, manufacturing changes, or raw-material changes are communicated to customers.

Commercial and Logistics Review

Price should be assessed together with quantity, packaging, lead time, shipping terms, and payment conditions. A quotation for 100 g cannot be directly compared with a quotation for 1 kg unless the basis is normalized, and a low unit price may not be advantageous if the minimum order quantity is unsuitable. Delivery planning should also distinguish between dispatch time and total transit time, because customs clearance and destination handling can affect the final arrival date.

Lead time is normally confirmed case by case rather than assumed from a catalogue page. For planning purposes, I ask buyers to provide the requested quantity, destination country, required arrival date, packaging preference, and documentation needs. This allows Maison Chemical to assess availability and return a more useful commercial proposal instead of an incomplete headline price.

Pricing, MOQ, and Lead-Time Considerations

Pricing for 2,4-Difluoro-3-methoxybenzoic acid may vary with quantity, purity specification, production status, packaging, analytical requirements, and destination. Buyers should request at least two quantity points when possible, such as a development quantity and a larger process quantity, to understand the scale relationship. The minimum order quantity should be confirmed in writing because it can differ between stock material and a newly arranged production batch.

For a time-sensitive project, I recommend building a procurement schedule with at least three dates: quotation approval, required dispatch date, and required arrival date. A buyer may also need time for incoming inspection and release after receipt, so the internal project plan should not treat the courier delivery date as the final usable date. When the material is critical to a campaign, a staged order or an agreed replenishment plan may provide better continuity than a single urgent purchase.

Common Purchasing Mistakes

One common mistake is comparing only the CAS number and price while ignoring the specification and analytical basis. Another is requesting a delivery date without providing the destination, quantity, packaging, or document requirements. Buyers also sometimes wait until after ordering to ask for a special COA format, additional testing, or specific packaging, which can create avoidable delays.

A further risk is treating a small development sample as proof of long-term supply capability. Before progressing to recurring orders, I recommend confirming manufacturing or sourcing arrangements, batch consistency expectations, change-control communication, and the supplier’s ability to support the intended scale. These checks do not guarantee that every project will proceed without variation, but they improve transparency and planning.

Maison Chemical Supplier Support

At Maison Chemical, I support buyers by clarifying the identity of 2,4-Difluoro-3-methoxybenzoic acid CAS 178974-97-5, discussing application-oriented specifications, and preparing quotations according to quantity and destination. As a chemicals manufacturer, supplier, and exporter, we can coordinate product information, packaging options, documentation, and delivery planning for international B2B inquiries. Specific availability, MOQ, lead time, and testing details are confirmed for each request rather than presented as unsupported universal commitments.

To receive a practical quotation, please provide the required quantity, target specification or purity, destination, intended use category, preferred packaging, and requested delivery window. If you need a batch-specific COA, additional analytical data, or a phased supply plan, include those requirements at the inquiry stage. This information helps us respond with a proposal that is easier to review internally and more suitable for your procurement process.

Summary Insight and Next Steps

The best way to purchase 2,4-Difluoro-3-methoxybenzoic acid CAS 178974-97-5 is to evaluate identity, specification, documentation, quantity, supplier capability, and logistics together. The compound is a substituted aromatic carboxylic acid intermediate with a commonly referenced molecular weight of approximately 188.13 g/mol, but application approval must rely on the buyer’s required specification and batch evidence. A supplier comparison is meaningful only when all quotations use the same quality and delivery assumptions.

1. Define the intended application and required quality level.
2. Request a batch-specific or representative COA and supporting product documents.
3. Compare MOQ, quantity pricing, packaging, lead time, and shipping terms on the same basis.
4. Confirm whether the supplier can support future scale-up or repeat orders.
5. Send Maison Chemical your quantity, destination, specification, and timeline for a tailored B2B quotation.

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