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SciFinder is the world's premier chemical information database. Produced by the Chemical Abstracts Service (CAS), a division of the American Chemical Society, SciFinder provides access to chemical structures, properties, spectra, reactions, and literature sourced from Chemical Abstracts (CAPlus) and MEDLINE. Regulated chemical information and chemical supplier catalogues are also searchable. SciFinder indexes 50,000 journal titles (historical and current) and patents from 63 patent authorities. As of 2022, it contained more than 55 million literature references.