Chemical Achievers
http://www.chemheritage.org/discover/online-resources/chemistry-in-history/themes/index.aspx
Chemical Achievers: The Human Face of the Chemical Sciences. From the Chemical Heritage Foundation.
Chemical Elements.com
http://www.chemicalelements.com/index.html
Chemical Elements.com is an interactive periodic table of the elements. Entries include Basic Information, Atomic Structure, Isotopes, Facts, and Related Links.
Green Chemistry
http://www.epa.gov/greenchemistry/index.html
This is an Environmental Protection Agency site promoting green, or sustainable chemistry. It is the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. Green chemistry applies across the life cycle of a chemical product, including its design, manufacture, and use.
The NIST Chemistry WebBook
http://webbook.nist.gov/
This site provides searchable access to the data compiled and distributed by the National Institute of Standards and Technology such as thermochemical and thermophysical data, IR spectra, and mass spectra.
Organic Chemistry Web Site Links
http://organicdivision.org/links.html
This site gives links to many other sites that are useful for general as well as organic chemists. Links include chemistry portals, databases, nomenclature, and named reaction site
PubChem
US National Institutes of Health -
Organic Compounds Database
http://www.colby.edu/chemistry/cmp/cmp.html
This database, compiled at Virginia Tech and made available by Colby College, provides physical data on a large number of organic compounds, including molecular weight, melting point, boiling point, index of refraction and UV absorption peaks. It is searchable by name, molecular formula or by data values for the above properties.