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CAS Reactions

The CAS reactions collection provides detailed and dependable data on more than 150 million single and multi-step reactions.

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More than 150 million single- and multi-step reactions published in journals, patents, dissertations, and other sources since 1840.

Covers organic and organometallic reactions. Total syntheses of natural products, and biotransformation reactions.

Scientist-curated and enhanced with yield data, detailed reaction conditions, defined substance roles, and experimental procedures.

Daily updates keep you current on the most recent discoveries.

Connections to relevant publications, substance properties, suppliers, and more within the CAS Content Collection™.

Searchable by structure, reaction role, functional group, reaction site, atom mapping, and more.

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The PFAS landscape: Understanding regulations, applications, and alternatives

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Digital R&D

AI models for chemistry: Charting the landscape in materials and life sciences

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Emerging Science

Thermal energy storage makes the leap to commercial usage

Thermal energy storage systems leverage specialized materials and processes that absorb, store, and release thermal energy as needed. What role can they plan in helping to make renewable energy more efficient?
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