In the vast and complex world of chemistry, accurate identification of substances is fundamental. This is where CAS Registry Numbers®, or CAS numbers, play an indispensable role. Assigned by the Chemical Abstracts Service, a division of the American Chemical Society, these unique numerical identifiers are crucial for unambiguously identifying chemical substances.

What is a CAS Number?

A CAS number is a unique identifier consisting of three parts, separated by hyphens, such as 21934-68-9. It is assigned to virtually every chemical substance described in the open scientific literature. Unlike chemical names, which can vary based on nomenclature systems and synonyms, a CAS number is a universal and consistent reference. For example, the CAS number 21934-68-9 corresponds to the chemical compound 6'-(Diethylamino)-1',3'-dimethylfluoran. This consistency is vital for avoiding confusion, especially when dealing with international trade and research collaboration.

Why CAS Numbers Matter for Procurement

For procurement managers, R&D scientists, and product formulators, using CAS numbers is a cornerstone of efficient chemical sourcing. When you need to buy 6'-(Diethylamino)-1',3'-dimethylfluoran, specifying its CAS number, 21934-68-9, ensures that you are searching for and requesting information about the correct substance. This precision is critical when communicating with:

  • Chemical Manufacturers: Providing the CAS number helps manufacturers confirm they are quoting for the exact product you need.
  • Chemical Suppliers: Accurate CAS number usage prevents errors in order fulfillment and ensures you receive the correct grade and specification.
  • Regulatory Bodies: CAS numbers are essential for safety data sheets (SDS), compliance documentation, and international shipping regulations.

Leveraging CAS Numbers for Global Sourcing

When sourcing chemicals like 6'-(Diethylamino)-1',3'-dimethylfluoran from global markets, particularly from suppliers in China, the CAS number is your primary tool for verification. It allows you to compare product offerings across different companies and confirm that you are getting the desired purity, such as 98% minimum for 6'-(Diethylamino)-1',3'-dimethylfluoran. Understanding the price of 6'-(Diethylamino)-1',3'-dimethylfluoran by referencing its CAS number ensures you are comparing like with like.

In essence, the CAS number is the universal language of chemical identification. By consistently using CAS numbers when inquiring about products, requesting quotes, and placing orders, businesses can significantly enhance accuracy, efficiency, and safety in their chemical procurement processes, ensuring they connect with the right manufacturer for their specific needs.