The Chemical Abstracts Service (CAS)

The Chemical Abstracts Service (CAS) is a division of the American Chemical Society that provides a comprehensive database of chemical information. It assigns unique identifiers called CAS Registry Numbers to chemicals, making it easier for scientists and professionals to accurately identify and research specific substances. CAS's extensive database includes data on chemical properties, structures, and related literature, supporting research, safety, and regulation across various industries. Essentially, CAS acts as a global reference system that organizes chemical data for quick and precise access by researchers, manufacturers, and regulators.