For common and frequently regulated chemicals, you can use cas common chemistry, an open community resource with nearly 500,000 chemical substances from cas registry. Quickly confirm chemical names, cas registry numbers®, structures or basic physical properties by searching compounds of general interest or leveraging an api connection. Cas registry numbers (cas rn) are simple and regular, convenient for database searches
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They offer a reliable, common and international link to every specific substance across the various nomenclatures and disciplines used by branches of science, industry, and regulatory bodies.
Redistribution rights for cas registry numbers are reserved by the american chemical society
“cas registry” is a registered trademark of the american chemical society. Chemsrc provides free cas number search engine to fast access over millions chemical structures, cas number, msds, properties and associated information. Chemical products are described in many different ways including chemical structures, generic, molecular formulas, systematic, common, and trade names. You can also identify your substance of interest by its cas registry number®, which is universally used to provide a unique, unmistakable identifier for chemical substances.
Every chemical is assigned a cas number Have you ever wondered what a cas number is and how they are assigned Check out this very simple explanation that will give you everything you need to know about what a cas number is, plus how cas numbers are assigned. Cas numbers were introduced in 1965 as a standardized system for identifying and indexing chemical substances
These unique numeric codes are assigned to individual compounds, polymers, alloys, minerals, and other substances.
