For procurement managers, R&D scientists, and formulation chemists, understanding the detailed specifications of chemical intermediates is crucial for making informed purchasing decisions. 2,5-Pyridinedicarboxylic Acid (CAS 100-26-5) is a prime example of such an intermediate, vital for various industrial processes. This guide provides an in-depth look at its specifications and essential advice for those looking to buy.

Understanding the Core Specifications

When evaluating 2,5-Pyridinedicarboxylic Acid, several key specifications should be considered:

• Chemical Name and CAS Number: Primarily known as 2,5-Pyridinedicarboxylic Acid, with the Chemical Abstracts Service (CAS) registry number 100-26-5. Synonyms like Isocinchomeronic Acid are also common.
• Molecular Formula and Weight: C7H5NO4, with a molecular weight of approximately 167.12 g/mol.
• Appearance: Typically described as a yellow to green fine crystalline powder. Variations in color or form might indicate different grades or handling procedures. For critical applications, confirming the exact visual characteristics is important.
• Purity: This is often the most critical specification. High-purity grades, commonly 99.0% Min. (as determined by HPLC), are available from reputable manufacturers. Lower purity grades might be suitable for less sensitive applications, but always verify the specifications against your requirements.
• Melting Point: A typical melting point range is 242-247 °C (with decomposition), providing an indicator of purity and identity.
• Solubility: Its solubility in water (e.g., 1.2g/l) is a practical characteristic for synthesis planning.
• Packaging: Common packaging includes 25 kg drums, but other sizes may be available depending on the supplier and your needs.

The Manufacturer's Role in Quality Assurance

Choosing a reliable manufacturer is paramount. Established producers in China, for instance, often adhere to strict quality control protocols. They provide essential documentation such as Certificates of Analysis (COA) for each batch, detailing the tested specifications. When you purchase this chemical, ensure the COA is readily available and clearly outlines the purity, physical appearance, and other critical parameters. This ensures you are receiving the product as specified and reduces the risk of costly issues in your downstream processes.

Finding the Right Supplier and Price

When seeking to buy 2,5-Pyridinedicarboxylic Acid, consider these factors when engaging with suppliers:

• Experience and Reputation: Look for suppliers with a proven track record in the chemical industry and positive customer testimonials.
• Communication: Clear and prompt communication is key, especially when discussing technical requirements and obtaining a price quote.
• Logistics and Lead Times: Understand their shipping capabilities and estimated delivery times to ensure they meet your project timelines.
• Pricing Structure: While competitive pricing is important, it should be balanced with the assurance of quality and reliable supply. Requesting quotes from multiple suppliers can help in negotiation.

Applications Drive Specification Needs

The intended application will heavily influence the required specifications. For pharmaceutical intermediates, the highest purity is essential. For general organic synthesis or dye manufacturing, slightly less stringent purity might be acceptable, potentially leading to a more favorable price. Always align your purchase requirements with the specific demands of your application.

In conclusion, understanding the detailed specifications of 2,5-Pyridinedicarboxylic Acid and partnering with reputable manufacturers and suppliers is fundamental for successful procurement. By focusing on purity, consistent quality, and reliable supply, businesses can ensure they acquire the right chemical intermediate for their needs at a fair price.