SciFindern
Authoritative source for identifying a chemical substance and its related chemical structures, chemical names, regulatory information, and properties, including CAS Registry Numbers®, reaction schemes, step-by-step experimental procedures, detailed conditions, and product yields. 
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Web of Science
A key resource for carefully selected multidisciplinary content in social sciences, arts and humanities and science with access to Conference Proceedings Index and Book Citation Index, Emerging Sources Citation Index, EndNote and Journal Citation Index. Provides abstracts and indexes to over 12,000 journals and over 148,000 conferences, workshops and seminars, dating from 1965 to the present. Find relevant results through searching across citation indexes, journal subjects, authors and institutions. Researchers can also identify who is citing the work of specific authors or titles and spot popular trends in research. It also serves as a Gateway allowing you to access full-text articles from any database we have access to.