Every day CAS scientists collect and analyze published scientific literature from around the globe, building the highest quality and most up-to-date collection of scientific information in the world.
Covering advances in chemistry and related sciences over the last 150 years, the CAS Content Collection empowers researchers, business leaders, and information professionals around the world with immediate access to the reliable information they need to fuel innovation.
Human intelligence is at the heart of the CAS Content Collection. Our team of scientific analysts embodies a wealth of specialized knowledge that lets them accurately extract and verify a multitude of data and key insights from each publication, making connections and uncovering trends only possible with the combined power of expert human analysis and advanced data technology.
As the authoritative source for chemical names, structures, and CAS Registry Numbers®, the CAS substance collection, CAS REGISTRY®, serves as a universal standard for chemists worldwide.
Details from thousands of global scientific references are added to the CAS Content Collection every day creating a comprehensive resource to access and keep up to date on the world’s published scientific literature across disciplines including biomedical sciences, chemistry, engineering, materials science, agricultural science, and many more.
The CAS reaction collection provides a current and reliable source of synthetic details sourced from journals, patents, dissertations, and seminal reference works to drive synthesis planning and process optimization.
Keep your research moving forward with CAS Chemical Supplier Insights, CAS's up-to-date resource for finding commercially available chemicals, including available quantities, prices, and supplier contact information.
Stay abreast of rapidly changing chemical regulations with CAS regulatory resources. Our collection provides the information you need to manufacture, import, export, transport, and use chemical products in key markets across the globe.
Crucial chemistry disclosures in patents are often buried in complex CAS Markush representations that can embody hundreds of specific substances. Common search engines cannot reliably interpret this information making it difficult to achieve a comprehensive patent search, but the scientists at CAS analyze these Markush representations and make them searchable to ensure that your queries don’t miss critical documents.
The Pistoia Alliance Chemical Safety Library (CSL) is a new open-access platform that streamlines access to hazardous reaction information crowd-sourced from academic, industry and government institutions around the world. Developed and hosted by CAS, the CSL supports laboratory safety by providing tools to:Search for hazardous reaction information by CAS Registry Number®, chemical name, SMILES and more.Contribute new hazardous reaction incident information to the library.Download aggregated information to integrate with internal workflows and knowledge bases.
The CAS Source Index (CASSI) Search Tool is an online resource intended to support researchers and librarians who need accurate bibliographic information. This complimentary resource can be used to quickly and easily look up or confirm publication titles and abbreviations, as well as CODEN, ISBN, or ISSN codes. The CASSI database contains a listing of publications indexed by Chemical Abstracts Service (CAS) since 1907.
This publicly available resource provides authoritative information on nearly 500,000 compounds from CAS REGISTRY®. The collection represents substances commonly found on regulatory lists, in consumer products and as part of introductory chemical curricula. Search functionality and an application programming interface (API) enable interested individuals to quickly find chemical names, CAS Registry Numbers®, structures or basic compound properties to foster learning and promote safety. Links to Wikipedia records (when available) have been provided by the Wikipedia Chemicals WikiProject in collaboration with CAS.