An excellent index to over 2000 periodicals in all subject areas including chemistry and with the full text of over 1000 titles included. A free database produced by the U.S. Government. A free database produced by the U.S. Dept. of Energy. Full text is available only if the library subscribes to the journal. A free site providing search access to journal article citations, many full-text articles, an alerting service and much more.
Users register free.
Find CAS Registry Numbers here. WebElements Contains Periodic Table database, Isotope Pattern Calculator, and Element percentage calculator. Materials Safety Data Sheets from Vermont Univ. Contains safety data on hazardous substances. Also a good place to find Chemical Abstracts Registry Numbers for substances.