In the vast and complex world of chemistry, precise identification of substances is paramount for research, safety, and commerce. The Chemical Abstracts Service (CAS) Registry Number, commonly known as a CAS number, serves as a unique identifier for chemical substances. For procurement managers, researchers, and anyone involved in chemical sourcing, understanding the importance and proper use of CAS numbers is fundamental. As a supplier of a wide range of chemical intermediates, we emphasize the role of CAS numbers in ensuring accuracy and clarity.

What is a CAS Number?

A CAS number is a unique numerical identifier, consisting of three parts separated by hyphens, assigned by the Chemical Abstracts Service of the American Chemical Society. For example, the CAS number for our key pharmaceutical intermediate is 302964-24-5. This number is assigned to substances regardless of their common names or trade names, providing an unambiguous way to identify them. It's crucial for accurately specifying chemicals, such as 2-amino-N-(2-chloro-6-methylphenyl)-1,3-thiazole-5-carboxamide.

Why are CAS Numbers Essential for Chemical Sourcing?

In the global chemical market, where substances can have multiple synonyms and trade names, CAS numbers eliminate confusion. When you are looking to buy a specific chemical, referencing its CAS number ensures that both you and the supplier are referring to the exact same compound. This is especially critical when sourcing pharmaceutical intermediates or any chemical where purity and identity are non-negotiable. Without the correct CAS number, a purchase order could inadvertently lead to the acquisition of the wrong substance, with potentially severe consequences for your research or production.

Accuracy in Research and Development

For R&D scientists, CAS numbers are indispensable tools. They are used in literature searches, database queries, and when preparing experimental protocols. Accurate identification via CAS numbers prevents errors in experimental setup and ensures that data gathered is relevant to the specific compound being studied. Whether you are investigating the properties of a specific thiazole derivative or developing a new synthesis route for a drug like Dasatinib, starting with the correct CAS identifier is key.

Ensuring Quality with Reliable Suppliers

As a reputable chemical manufacturer and supplier, we meticulously use CAS numbers to categorize and identify our products. When you request a quote or place an order for chemical intermediates, referencing the CAS number, like 302964-24-5, guarantees you are purchasing the precise compound you need. This precision, combined with our commitment to high purity standards (e.g., ≥99.0% HPLC for our pharmaceutical intermediates), provides the confidence needed for critical applications.

Navigating the Market with CAS Numbers

When interacting with international suppliers, particularly those based in regions like China, clarity in communication is vital. Using CAS numbers is a universal language in chemistry, ensuring that your procurement needs are understood correctly. This helps avoid misunderstandings related to product names and specifications, making the sourcing process more efficient and reliable for buyers seeking high-quality chemical raw materials.

In summary, the CAS number is more than just a sequence of digits; it is a critical tool for accurate identification, safe handling, and efficient sourcing of chemical substances. Prioritizing its use ensures precision in your chemical endeavors.