The most comprehensive collection of chemical reactions, substances, sequences, patents, and scientific literature. The smartest, most powerful, science search engine including BLAST, CDR, and motif. CAS expert scientists provide context, concepts, and relationships beyond keywords.

Understand a formulation’s effectiveness with quick access to the best information for active ingredients and excipients. Get insights beyond literature and interact with formulations data curated from patents, journals, and product inserts more effectively. Evaluate ingredients, find alternative suppliers, and explore regulatory requirements in one easy interface.

Designed with the analytical chemist in mind as a single source for searching and comparing the latest published scientific methods. Search and compare hundreds of thousands of methods across multiple scientific fields of study. Seamless integration with SciFinderⁿ