Cas registry numbers (cas rn) are simple and regular, convenient for database searches. They offer a reliable, common and international link to every specific substance across the various รขโ‚ฌยฆ 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. 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. The chemindex database is a free tool for finding information on over 1,800,000 distinct chemical substances. Search on cas registry numbers, chemical names or name fragments. A free and รขโ‚ฌยฆ 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.

A free and รขโ‚ฌยฆ 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.