SELECT CHEM command

Very often a query with just a Registry Number does not yield a sufficient number of results. The chemical names must then be included in the search. In order to avoid writing every single name, the SELECT CHEM command was created, taking over every entry in the CN field of the Registry File. 

Fig. 120. Search for piceol in the Registry File and processing of the results in CA through the SELECT CHEM command...

In the case of crossfile searching combining the Registry File with another database, which does not contain Registry Numbers, the SELECT CHEM command must be replaced by the SELECT NAME command. 

The search begins as a nomenclature search in the Registry File (Fig. 120). The command SELECT CHEM will write all the Registry Numbers and all entries in the Chemical Name (CN) field into a temporary memory. All such entries will receive an E-number, similar to the EXPAND command. 

If you wish to find out if there are documents for a certain compound in CApreviews, refer to the Locator field (LC) in the Registry File. Crossfile searching between Registry File and CApreviews is effected by the command SELECT NAME or SELECT CHEM, provided that it is a substance-orientated query. 

K. Aoki, T. Seki, M. Sakuragi, and K. Ichimura, Reversible alignment change of liquid crystals induced by photochromic molecular films, Part 15. Convenient methods to prepare command surfaces by surface-selective modifications of poly(vinyl alcohol) thin films with azobenzene units, Makromol. Chem. 193, 2163-2174 (1992). 

Andreadou, L Menge, W.M.P.B. Commander, J.N.M. Worthington, E.A. Vermaeulen, N.P.E. Synthesis and novel Se-substituted seleocysteine derivatives as potential kidney selective prodrugs of biologically active selenol compounds evaluation of kinetics of P-elimination reactions in rat renal cytosol. J. Med. Chem. 1996, 39, 2040-2046. 

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