Now Web-based! OPTIONAL - Sign up for an account to change structure editors, save searches, get alerts Structures, reactions and properties, references to the literature for organic and inorganic compounds from the Beilstein and Gmelin databases. Structure searchable database of chemical substances with references dating back to the 18th century. Still one of the best places to obtain property data.
Journal & patent literature for chemistry and related disciplines, including substance data (REGISTRY), chemical reactions (CASREACT), chemical regulatory data (CHEMLIST), and suppliers (CHEMCATS). Instructions on Accessing SciFinder Scholar
A series of organic reactions; a volume is produced yearly. Each vol. contains many chapters, each about one reaction / phase of a reaction. Tables incl. all found examples of the reaction. Each vol. has a cumulative index and cumulative chapter titles. When using this, it's best to search by reaction type, as many compounds mentioned in the text are not in the indices. "Subjects are presented from the preparative viewpoint, ... attention is given to limitations, interfering influences, ..."