SciFinder, produced by Chemical Abstracts Service (CAS), is the most comprehensive database for the chemical literature, indexing journal articles and patent records (and other document types), as well as chemical substances and reactions. You can search by topic, author, and substances by name or CAS Registry Number, OR use the editor to draw chemical structures, substructures, or reactions.
It's a core research tool for chemistry, biochemistry, chemical engineering, materials science, nanotechnology, physics, environmental science and other science and engineering disciplines. Depending on your research, SciFinder's is complementary to other databases like Reaxys, Web of Science, PubMed, Compendex and INSPEC.
SciFinder is a collection of 6 CAS databases, plus Medline: