JICST Chemical Dictionary Database, as central dictionary of JICST Online Factual Database System (JOIS-F), has been extended its scope from low molecular organic compounds to their mixtures. The online service system was extended its function in 1989, and now the search of the mixture type substances are available. Indexing of the chemical substances in literatures, according to JICST Chemical Dictionary nomenclature, was started in January 1990 for 29 journals on trial. The procedure of computer processing and search commands of the mixture type and the indexed substances from literatures, are described.
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