The secondary sources of science information (reference books, abstract journals, databases, etc.) are the products of professional analytical processing of primary information. Their development is consequential to accumulating big arrays of science information and researchers’ demand for efficient instruments to navigate through the data and monitor advancement of science. The SciFinder и Reaxys are the most reliable platforms for chemical information retrieval. In hundred years of their existence, they have evolved from printed abstract publications to modern search platforms that enable textual and structural search in several databases that can be integrated with primary sources and export data in various formats. The SciFinder и Reaxys have become indispensable instruments of modern chemical studies; they are available for researchers in Russian leading research institutions and universities. The authors examine specific aspects of indexing within these systems and potential for each of the systems.
The evolution of secondary information sources in chemistry