In the vast landscape of chemical compounds, precise identification and accurate sourcing are fundamental for researchers, manufacturers, and procurement specialists. The Chemical Abstracts Service (CAS) Registry Number, commonly known as a CAS number, serves as a unique, unambiguous identifier for chemical substances. Understanding its importance is crucial for efficient and compliant chemical procurement.

A CAS number is a numerical sequence, typically consisting of three parts separated by hyphens (e.g., 1262727-09-2), assigned to a specific chemical substance. Unlike chemical names, which can be numerous, inconsistent, or ambiguous, a CAS number provides a universal reference. This is invaluable when you need to buy chemicals or research their properties, ensuring you are obtaining precisely the substance you require.

For example, when looking for Dibromo Diphenyl Thiadiazolo Quinoxaline, referencing its CAS number, 1262727-09-2, eliminates any ambiguity regarding its identity. This is particularly important for specialized materials used in advanced applications like OLEDs or OFETs, where precise molecular structure directly impacts performance. A reliable supplier will always provide the correct CAS number for their products, allowing you to verify its identity and specifications.

Utilizing CAS numbers in your searches not only streamlines the identification process but also aids in regulatory compliance. Many chemical regulations, safety data sheets (SDS), and inventory systems rely on CAS numbers for accurate tracking and reporting. When you purchase chemicals, especially from international suppliers, confirming the CAS number ensures that the product meets required standards and is correctly documented for import and use.

When you are sourcing materials from a manufacturer in China or anywhere else globally, using the CAS number in your inquiries will help avoid errors and speed up the quoting process. It allows the supplier to quickly locate the exact product and provide accurate pricing and availability information. Whether you are looking for common intermediates or highly specialized compounds, always double-check the CAS number.

In summary, CAS numbers are indispensable tools for accurate chemical identification and efficient sourcing. They bridge language barriers and eliminate confusion, ensuring that you get the right chemical for your needs, every time. We encourage all chemical buyers to prioritize the use of CAS numbers in their procurement processes to enhance accuracy and compliance.