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730 ΥΈΛ/ÎS OF CHEMISTRY The Beilstein Handbook of Organic Chemistry has gone electronic! You can now access this important database on STN International. BEILSTEIN is a worthy complement to the other essential chemical databases on the network, phenomena, optical including the CAS Registry File, adding to STN's and spectral data, magnetic and electrical data, and already excellent coverage of chemistry electrochemical behavior. BEILSTEIN on STN provides structure, BEILSTEIN is produced by the Beilstein Institute substructure, numeric, and text searching on and supplied by Springer-Verlag. For more more than 350,000 heterocyclic compounds. information, call STN International, You'll find a vast amount of evaluated and verified data for specific substances — such as 800-848-6538. physical properties, chemical behavior and STN International is operated in North America by Chemical Abstracts reactions — reported from 1830 to 1960! Service® a division of the American BEILSTEIN covers substance identification, syn- Chemical Society. theses and reactions, structure and energy STisr parameters, state of aggregation, mechanical INTERNATIONAL The Scientific & Technical properties, thermodynamic data, transport Information Network 30
November 28, 1988 C&EN
CIRCLE 4 ON READER SERVICE CARD — •
