In the vast and complex world of chemistry, precise identification of substances is fundamental for safety, research, regulation, and commerce. The Chemical Abstracts Service (CAS) Registry Number, commonly known as a CAS number, serves as a unique and universally recognized identifier for chemical substances. For anyone involved in chemical procurement, research, or handling, understanding the significance of CAS numbers is indispensable.

What is a CAS Number?

A CAS number is a unique numerical identifier assigned to a specific chemical substance. It consists of three parts separated by hyphens: the first two digits, a hyphen, the next three digits, a hyphen, and the final digits, which act as a check digit. For example, the CAS number for Difluoro-[1,1':4',1''-terphenyl]-2',6'-dicarbonitrile is 2353500-56-6.

Why Are CAS Numbers Important?

  • Unambiguous Identification: They eliminate ambiguity, ensuring that everyone is referring to the exact same chemical compound, regardless of different common names or systematic nomenclature.
  • Safety and Regulation: CAS numbers are vital for safety data sheets (SDS), labeling, and regulatory compliance, helping to track hazardous materials and manage risks effectively.
  • Research and Development: In R&D, precisely identifying reactants, products, and intermediates is critical. Using CAS numbers in literature searches and experimental planning ensures accuracy. For instance, when looking to buy Difluoro-[1,1':4',1''-terphenyl]-2',6'-dicarbonitrile, referencing CAS 2353500-56-6 guarantees you are obtaining the correct compound.
  • Global Commerce: They facilitate international trade and communication, providing a common language for chemicals in the global marketplace. Procurement professionals rely heavily on CAS numbers to source materials efficiently.

How to Use CAS Numbers in Procurement

When sourcing chemicals, always include the CAS number in your inquiries and purchase orders. This helps suppliers confirm that they are providing the correct substance and can also assist them in retrieving accurate pricing and availability information. For example, searching for 'CAS 2353500-56-6 manufacturer' will lead you directly to suppliers like us who stock this specific chemical.

Partnering with Confidence

As a leading supplier of specialty chemicals, we understand the importance of accurate identification. We meticulously label all our products with their correct CAS numbers, including our high-purity Difluoro-[1,1':4',1''-terphenyl]-2',6'-dicarbonitrile. We encourage you to leverage CAS numbers to streamline your sourcing process and ensure you are purchasing from reliable manufacturers who prioritize accuracy and quality.