In the global chemical industry, standardization is key to clear communication, efficient trade, and accurate tracking of substances. The Chemical Abstracts Service (CAS) Registry Number is a unique numerical identifier for chemical substances. Understanding the significance of a CAS number, such as 403661-76-7 for (S)-3-Amino-4-(2-bromophenyl)butyric Acid Hydrochloride, is fundamental for procurement professionals, researchers, and anyone involved in chemical transactions.

What is a CAS Registry Number?

The CAS Registry Number is assigned by the Chemical Abstracts Service, a division of the American Chemical Society. Each CAS number is unique and corresponds to a single chemical substance. It consists of three parts separated by hyphens: the first part has up to six digits, the second part has up to two digits, and the third part is a single check digit. For instance, 403661-76-7 is the CAS number for (S)-3-Amino-4-(2-bromophenyl)butyric Acid HCl.

Why CAS Numbers are Crucial in Chemical Procurement

The universal adoption of CAS numbers provides several critical benefits for buyers and sellers alike:

• Unambiguous Identification: Chemical nomenclature can be complex and vary across different regions or languages. CAS numbers provide a single, universally recognized identifier, eliminating confusion and ensuring that everyone is referring to the exact same chemical substance. This is especially important when looking to buy specific intermediates like (S)-3-Amino-4-(2-bromophenyl)butyric Acid HCl.
• Database and Literature Search: CAS numbers are indispensable for searching chemical databases, scientific literature, and regulatory information. Whether you are researching the properties of CAS 403661-76-7 or seeking suppliers, using the CAS number ensures precise search results.
• Regulatory Compliance: Government agencies and regulatory bodies worldwide use CAS numbers for inventory, hazard communication, and compliance purposes. Knowing the correct CAS number is essential for ensuring that you are handling, transporting, and using chemicals legally and safely.
• Supplier Verification: When you search for a chemical, such as (S)-3-Amino-4-(2-bromophenyl)butyric Acid HCl, verifying that a supplier lists the correct CAS number (403661-76-7) is a primary step in confirming they offer the intended product. It's a quick way to filter out potential misrepresentations.
• Global Trade Facilitation: In international trade, the CAS number is a critical piece of information for customs declarations, safety data sheets (SDS), and shipping documents, facilitating smoother transactions and reducing delays.

Sourcing (S)-3-Amino-4-(2-bromophenyl)butyric Acid HCl Using Its CAS Number

When you need to source (S)-3-Amino-4-(2-bromophenyl)butyric Acid HCl, using its CAS number (403661-76-7) in your search queries with manufacturers and suppliers, particularly those in China, is highly recommended. This ensures you are precisely targeting the chemical you require. Reputable suppliers will clearly display the CAS number alongside the product name and specifications on their websites and in their quotes.

Conclusion

The CAS Registry Number is more than just a string of digits; it is the bedrock of chemical identification and communication. For procurement professionals and researchers dealing with substances like (S)-3-Amino-4-(2-bromophenyl)butyric Acid HCl, understanding and correctly utilizing its CAS number (403661-76-7) is essential for accurate sourcing, compliance, and efficient operations. Always confirm the CAS number when you buy to ensure you receive the exact chemical intermediate needed for your synthesis projects.