SciFinder SciFinder is the most comprehensive database for coverage of chemistry & chemical engineering. It has the world's largest collection of organic and inorganic substance information. The web version of SciFinder provides integrated access to CAPlus, CAS Registry, CASREACT, CHEMLIST, and CHEMCATS which are produced by Chemical Abstracts Service, and to MEDLINE which is produced by the U.S. National Library of Medicine. Sources covered in SciFinder include 10,000 journals, patents from 61 patent authorities, book chapters, conference proceedings, dissertations, evaluated reference works, technical reports, as well as book reviews and biographical information.