In the intricate world of chemical procurement and research, standardized identification is crucial for clarity and accuracy. The Chemical Abstracts Service (CAS) Registry Number, commonly referred to as a CAS number, is a universally recognized system for uniquely identifying chemical substances. For procurement professionals, R&D scientists, and anyone involved in the chemical industry, understanding CAS numbers is fundamental to accurate sourcing, regulatory compliance, and effective communication. This guide will break down the importance of CAS numbers, using Diethyl 2,3-quinolinedicarboxylate (CAS 32413-08-4) as a practical example.

What is a CAS Number?
A CAS number is a unique numerical identifier assigned by the Chemical Abstracts Service, a division of the American Chemical Society, to every chemical substance described in the scientific literature. It consists of three parts, separated by hyphens, with the first two parts having up to five digits, the third part having up to six digits, and the last digit being a check digit. For instance, the CAS number for Diethyl 2,3-quinolinedicarboxylate is 32413-08-4.

Why are CAS Numbers Important for Procurement?
For B2B buyers looking to buy Diethyl 2,3-quinolinedicarboxylate or any other chemical, using the CAS number is the most precise way to specify the exact substance required. Relying solely on chemical names can be problematic due to variations in nomenclature, synonyms, and potential ambiguity. When you submit a Diethyl 2,3-quinolinedicarboxylate price inquiry, including the CAS number 32413-08-4 ensures that suppliers understand precisely which compound you are interested in. This reduces the risk of errors and miscommunication, especially when dealing with international suppliers, such as a Diethyl 2,3-quinolinedicarboxylate manufacturer in China.

CAS numbers facilitate a streamlined procurement process by:

  • Ensuring Specificity: Guarantees that you are ordering the exact chemical substance, avoiding confusion with isomers or related compounds.
  • Facilitating Global Trade: CAS numbers are recognized internationally, making it easier for buyers and sellers across different countries to communicate effectively about chemical products.
  • Supporting Regulatory Compliance: Many regulatory bodies and safety databases use CAS numbers for tracking, reporting, and managing chemicals.
  • Enabling Research: Researchers use CAS numbers to quickly find information on chemical properties, synthesis methods, and safety data.

Using Diethyl 2,3-quinolinedicarboxylate (CAS 32413-08-4) as an example, a procurement professional would use this number when searching supplier databases, requesting quotes, or placing orders. This ensures that when they order Diethyl 2,3-quinolinedicarboxylate for agrochemical applications, they receive the correct isomer and purity. Similarly, when looking for an Imazethapyr intermediate supplier, verifying their ability to provide the specified CAS number is a key vetting step.

In conclusion, CAS numbers are indispensable tools in the chemical industry. They provide a universal language for chemical identification, essential for accurate procurement, research, and regulatory compliance. For any B2B transaction involving chemicals, always use and verify the CAS number to ensure clarity, efficiency, and the successful acquisition of the materials you need.