Chemical databases, tables, and compounds and their properties

3D Molecular Modeling
Requires Chime plug-in. From Akira Dobashi, Tokyo University of Pharmacy and Life Science.

3-D Structure Database
Tens of thousands of rotating molecular structures. Requires Chime plug-in. From Syncon.

AssayFinder
Search for clinical analyses performed by numerous companies and health care providers. From Oxford Radcliffe Hospital.

Athena Mineralogy
Databases of inorganic and organic minerals.

Atmospheric Chemistry Data and Resources
From NASA's Goddard Space Flight Center.

BioMagResBank
NMR data on nucleic acids, peptides, and proteins. From the University of Wisconsin at Madison.

ChemExper Chemical Directory
Submit chemical information to their database, or retrieve data submitted by others. From the Universite de Lausanne.

Material Properties
Density, viscosity, thermal conductivity, heat capacity, etc. for many organic and inorganic substances. From Walter A. Siegmund.