CAS Registry Services℠

CAS Reactions

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

Contact us
Hexagon shaped overlay
3D rendering of interconnected blue molecules representing a chemical structure.

Features

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.

Latest from CAS Insights™

エマージング・サイエンス

Nipah virus explained: Risks, realities, and the hope from new research

New Nipah cases in India have renewed focus on a high‑fatality zoonotic threat shaped by complex spillover dynamics, severe neurological disease, and limited medical countermeasures. Meanwhile, global efforts in diagonistcs, therapeutics, and vaccines are accelerating.
|記事
バイオテクノロジー

Innovations in cancer immunotherapy: Bi-specific T cell engagers

Bi-specific T cell engagers are poised to become key immunotherapy treatments due to simpler production and new safety advances.
|記事
バイオテクノロジー

マイクロエレクトロニクスの最前線:新興技術に関する洞察

研究者はマイクロエレクトロニクスのような広大な分野で、どのように新たなトレンドを特定できるのでしょうか?私たちの分析により、材料、デバイス、応用、製造方法の全領域にわたるブレークスルーが明らかになりました。
|記事