This handbook covers both organic (C1 to C28 compounds) and inorganic (Ag to Zn compounds) substances at ranges of temperatures and under different conditions.
ChemSpider is a free access service providing a structure centric community for chemists. Providing access to millions of chemical structures and integration to a multitude of other online services, ChemSpider is the richest single source of structure-based chemistry information.
The National Research Council's Digital Repository is a persistent archive for digital objects of all kinds.
This new platform was created to host many different digital collections in a single environment, offering an improved interface which can search each collection separately or the entire repository at once.
This site contains interactive 3D animations for some of the most important organic reactions covered during an undergraduate chemistry degree with supporting information on reactivity and spectroscopy.
Kirk-Othmer Encyclopedia of Chemical Technology by 
Chemical Properties Handbook by 
Encyclopedia of Pharmaceutical Technology by 
