Cas (chemical abstracts service) is a division of the american chemical society. It is a source of chemical information and is located in columbus, ohio, united states. Cas registry numbers (cas rn) are simple and regular, convenient for database searches.

Look up cas in wiktionary, the free dictionary. Cas, cas, or cas may refer to: Founded in 1914, the cas is the worldรขโ‚ฌโ„ขs only actuarial organization focused exclusively on property and casualty risks and serves over 11,000 members worldwide. Quickly confirm chemical names, cas registry numbersยฎ, structures or basic physical properties by searching compounds of general interest or leveraging an api connection. Cas registryยฎ, the cas substance collection, is the premier source relied upon by scientists and regulators worldwide for accurate information on chemical substances.

Cas registryยฎ, the cas substance collection, is the premier source relied upon by scientists and regulators worldwide for accurate information on chemical substances.