In the vast and complex world of chemistry, precise identification of substances is paramount for effective research, development, and commerce. The Chemical Abstracts Service (CAS) Registry Number, commonly known as the CAS number, serves as a unique, internationally recognized identifier for chemical substances. For B2B professionals, particularly those in procurement and R&D, understanding and utilizing CAS numbers is an indispensable skill.

Every distinct chemical compound, whether it's a simple element or a complex organic molecule, is assigned a unique CAS number. This number is crucial when you need to buy a specific chemical, ensuring you obtain the exact substance required for your application. For example, when seeking 3-Methoxyphenylhydrazine Hydrochloride, using its CAS number, 39232-91-2, eliminates ambiguity. This precise identifier ensures that suppliers, whether they are manufacturers or distributors, understand exactly which product is being requested, preventing costly errors.

The utility of CAS numbers extends to facilitating smooth transactions and communication. When you search for '39232-91-2 price' or 'CAS 39232-91-2 manufacturer', you are leveraging this unique identifier to connect directly with relevant providers. This is particularly effective when sourcing from international markets, such as finding a reliable supplier in China. A clear CAS number on an inquiry or order form ensures that the product specification is understood globally.

Moreover, CAS numbers are vital for regulatory compliance, safety data sheet (SDS) retrieval, and scientific literature searches. Having the correct CAS number associated with a chemical like 3-Methoxyphenylhydrazine Hydrochloride ensures that you can quickly access critical safety information and relevant research papers. It acts as a universal key to a wealth of information, from physical properties like appearance (e.g., purple powder) to detailed technical specifications.

In summary, the CAS number is more than just a string of digits; it's a critical tool for accuracy, efficiency, and safety in the chemical industry. Mastering its use is essential for any professional involved in chemical sourcing and utilization.