In the intricate world of chemical procurement and research, precision and clarity are paramount. One of the most fundamental tools for identifying and tracking chemical substances is the Chemical Abstracts Service (CAS) Registry Number, commonly known as the CAS number. For professionals in the B2B chemical sector – from R&D scientists to procurement managers – understanding the significance of CAS numbers is crucial for accurate sourcing and information retrieval. This article aims to demystify CAS numbers and highlight their importance, using 2,6-Dichloro-4-(trifluoromethyl)aniline (CAS 24279-39-8) as a prime example.

What is a CAS Number?
A CAS number is a unique, alphanumeric identifier assigned to a chemical substance by the Chemical Abstracts Service, a division of the American Chemical Society. These numbers are globally recognized and serve to eliminate ambiguity, ensuring that everyone is referring to the exact same chemical compound. A CAS number consists of up to ten digits, separated into three parts by hyphens. For instance, the CAS number for 2,6-Dichloro-4-(trifluoromethyl)aniline is 24279-39-8. This unique identifier is invaluable for searching databases, verifying product specifications, and ensuring regulatory compliance.

The Importance of CAS Numbers in Sourcing
For businesses looking to buy chemical intermediates, the CAS number is often the primary search term. When a procurement manager or scientist needs to find a specific compound, using its CAS number guarantees that they will locate the correct material. This is particularly important for specialty chemicals that may have multiple synonyms or trade names. For example, 2,6-Dichloro-4-(trifluoromethyl)aniline is also known as 4-Amino-3,5-dichlorobenzotrifluoride. Without the CAS number 24279-39-8, there could be confusion. By using the CAS number, buyers can quickly and confidently identify potential suppliers and request quotes for the exact product they require.

2,6-Dichloro-4-(trifluoromethyl)aniline (CAS 24279-39-8): A Case Study
As a vital intermediate for the agrochemical and pharmaceutical industries, 2,6-Dichloro-4-(trifluoromethyl)aniline is a substance frequently searched for by its CAS number. Manufacturers and suppliers typically list this identifier prominently on their product pages and documentation. When you search for 'CAS 24279-39-8,' you will find numerous sources for this compound. This highlights how the CAS number facilitates efficient market access and streamlines the procurement process. If you are in need of this intermediate, utilizing its CAS number will help you find the most reliable manufacturers and suppliers, ensuring you buy the correct material at a competitive price.

Beyond Identification: Compliance and Safety
CAS numbers are also critical for safety and regulatory purposes. Safety Data Sheets (SDS) and product specifications invariably include the CAS number, linking essential hazard information, handling instructions, and regulatory status to the specific chemical. For businesses operating internationally, ensuring that all materials are correctly identified by their CAS numbers is fundamental for customs clearance, import/export regulations, and workplace safety protocols. Accurate identification prevents costly errors and potential safety hazards.

In conclusion, CAS numbers are indispensable tools in the chemical industry. They provide a universal language for chemical identification, essential for accurate sourcing, efficient procurement, and ensuring safety and compliance. For any professional involved in the chemical supply chain, familiarizing oneself with the use and importance of CAS numbers, such as for key intermediates like 2,6-Dichloro-4-(trifluoromethyl)aniline (CAS 24279-39-8), is a critical step towards successful operations. When you need to buy or research chemicals, always start with the CAS number.