For procurement managers and R&D scientists in the chemical industry, understanding the precise specifications of intermediates is fundamental to successful purchasing and application. This knowledge ensures that the materials procured meet the exact requirements for downstream synthesis and product development.

Key to identifying and specifying chemicals is the CAS Registry Number, such as 128073-16-5 for Ethyl 3-chloro-5-(trifluoromethyl)pyridine-2-carboxylate. This unique numerical identifier is crucial for unambiguous identification, preventing errors in ordering and communication. When you search for a chemical, using its CAS number is often the most efficient method.

Beyond the CAS number, product specifications like appearance, purity, and molecular formula are critical. For instance, a white powder intermediate like Ethyl 3-chloro-5-(trifluoromethyl)pyridine-2-carboxylate with a purity of 99% indicates a high-grade material suitable for demanding applications in pharmaceutical or agrochemical synthesis. Buyers should always verify these details with their potential manufacturer and supplier.

When engaging with a supplier in China or elsewhere, it's important to request a Certificate of Analysis (CoA) for critical intermediates. The CoA provides detailed results of quality tests performed on a specific batch, confirming its adherence to the agreed-upon specifications. This document is essential for quality assurance and regulatory compliance.

For businesses looking to buy these intermediates, understanding these specifications allows for better evaluation of product offerings and negotiation of a fair price. It empowers buyers to make informed decisions, ensuring they receive materials that will perform reliably in their intended applications, whether it's for a research lab or a large-scale manufacturing process. Prioritize suppliers who readily provide detailed product information and support.