In the global chemical industry, precise identification and clear communication are fundamental to safe and efficient trade. Chemical Abstract Service (CAS) Registry Numbers, or CAS numbers, are the universally recognized identifiers for chemical substances. For anyone involved in sourcing or researching chemicals, understanding the significance of these unique identifiers is crucial. This guide focuses on the importance of CAS numbers, using 7-Bromo-4-chloro-2-methylquinazoline (CAS: 403850-84-0) as an example.

What is a CAS Number?

A CAS number is a unique numerical identifier assigned to a chemical substance by the Chemical Abstracts Service, a division of the American Chemical Society. It consists of three parts separated by hyphens: the first part contains up to five digits, the second part contains up to six digits, and the third part is a single digit which serves as a check digit. For instance, 7-Bromo-4-chloro-2-methylquinazoline is precisely identified by its CAS number: 403850-84-0.

Why are CAS Numbers Essential for Buyers?

CAS numbers are indispensable tools for buyers and researchers in the chemical industry for several key reasons:

  • Unambiguous Identification: They eliminate confusion that can arise from multiple common names, synonyms, or trade names for the same chemical. When you specify the CAS number 403850-84-0, you are unequivocally referring to 7-Bromo-4-chloro-2-methylquinazoline.
  • Regulatory Compliance: CAS numbers are used in regulatory documents, safety data sheets (SDS), and international trade agreements, ensuring compliance and safe handling.
  • Efficient Sourcing: When searching for a specific chemical, using its CAS number is the most efficient method to find it across databases, supplier catalogs, and scientific literature. If you need to buy 7-Bromo-4-chloro-2-methylquinazoline, searching by 403850-84-0 will yield precise results.
  • Quality Verification: Matching the CAS number on product documentation with your required specifications helps verify the integrity and authenticity of the chemical purchased.

Procuring with Confidence: CAS 403850-84-0

As a manufacturer and supplier of chemical intermediates, we ensure that all our products, including 7-Bromo-4-chloro-2-methylquinazoline, are clearly labeled with their correct CAS numbers. This commitment to accuracy is part of our broader quality assurance. When you decide to buy 7-Bromo-4-chloro-2-methylquinazoline from us, you can be confident that you are receiving the exact compound identified by CAS 403850-84-0, meeting our stringent purity standards (97% minimum).

We encourage all our customers to utilize CAS numbers in their inquiries and orders. It not only streamlines the procurement process but also guarantees that you receive the precise chemicals necessary for your research and production needs. For accurate sourcing and a reliable supply of 7-Bromo-4-chloro-2-methylquinazoline, simply specify CAS 403850-84-0 when you request a quote or sample.