The Web of Science platform provides online access to their core Citation Indexes, and also hosts a number of subject-specific databases.
Provides indexing, abstracting of and citation linking to journals in science, technology, medicine, and the social sciences.
"SciFinder-n, produced by Chemical Abstracts Service (CAS), is the most comprehensive database for the chemical literature, searchable by topic, author, substances by name or CAS Registry Number, or using the editor to draw chemical structures, substructures, or reactions."
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