SciFinder Scholar provides access to Chemical Abstracts (CA) and the CAS Registry file. CA is the world's largest and most up-to-date collection of chemical information, with more than 20 million abstracts of journal articles, patents, and more. CAS Registry contains more than 24,000,000 substance records, including more than 16,000,000 organic and inorganic substances and 4,000,000 biosequences. The Registry is the world's largest collection of organic substance records.
Coverage Dates: 1907 - present

The Web of Science accesses a multidisciplinary database of bibliographic information gathered from thousands of scholarly journals. The databases are indexed so you can search for specific articles by subject, author, journal, and/or author address. Because the information stored about each article includes the article's cited reference list (often called its bibliography), you can also search the databases for articles that cite a known author or work.
Coverage Dates: 1970 - present

TOXLINE offers access to information in all areas of toxicology, including chemicals and pharmaceuticals, pesticides, environmental pollutants, and mutagens and teratogens. This database provides bibliographic citations and abstracts from journal articles, monographs, technical reports, theses, letters, meeting abstracts, papers and reports. Produced by the U.S. National Library of Medicine, information in the database is drawn from a number of discrete files including Toxicity Bibliography and Developmental and Reproductive Toxicology. This version of TOXLINE does not contain information from Chemical Abstracts Service, BIOSIS, or International Pharmaceutical Abstracts; furthermore, it is a "rolling 5-year" database, consisting of records from the last 5 years plus the current year.
Coverage Dates: 1994 - present

Uses the Google search engine to search for scholarly materials from around the world such as peer-reviewed papers, theses, books, preprints, abstracts and technical reports. Google Scholar searches a variety of academic publishers, professional societies, preprint repositories and universities. Some articles are available in full-text through links to OSU's journal subscriptions.
Coverage Dates: coverage range - unknown