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SciFinder |
Web of Science |
Reaxys |
Science of Synthesis |
| Scope & Purpose
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SciFinder provides access to the full suite of CAS databases for advanced students and researchers. It is comprehensive.
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Web of Science provides access to the Science Citation Index. It is best used for searching and tracking citations and cited authors.
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Reaxys (Beilstein + Gmelin + Patent Chemistry) covers organic, organometallic, and inorganic compounds and their reactions, synthesis, and properties.
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Science of Synthesis is a highly organized collection of authored reviews covering the experimental methods of organic chemical synthesis, arranged by class of product.
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| Number of bibliographic records
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Over 28 million
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millions
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Over 4 million
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N/A
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| Number of substance records
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Over 60 million
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N/A
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Over 18 million
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N/A
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| Journals Covered
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About 9,000 currently scanned.
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More than 6,600 selected "source journals" across the sciences are fully indexed.
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About 400. Historically the Beilstein and Gmelin handbooks covered many more sources inclucing patents, and Beilstein was essentially comprehensive for organic chemistry up to 1959.
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N/A
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| Types of Literature Covered
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All kinds: Journals, Patents, Dissertations, Technical Reports, Conferences, selected books, etc.
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Journals; plus selected conference proceedings since 1990
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Journals and selected patents
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Selected journals, books, and patents
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| Dates Covered
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CA: 1907-present; some pre-1907 records have been added.
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1965-present (coverage in UT's subscription)
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ca.1770-present
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N/A
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| Languages Covered
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more than 50
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primarily English
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primarily English and German; also French, Russian and others.
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N/A
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| Types of Searching
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Research topic; chemical name/synonym; chemical structure and substructure; chemical reaction; Registry Number; Author/Inventor; molecular formula; patent number; etc.
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Keyword; author; organization; cited reference; funding agency; grant number; publication name
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Chemical structure and substructure; chemical reaction; chemical name/synonym; CAS RN; MF; property data; bibliographic data
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Structure/reaction; keyword; author; content browsing
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| Chemical Structures?
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Yes
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No
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Yes
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Yes
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CAS Registry Numbers?
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Yes
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No
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Yes for most older organic (Beilstein) compound records; newer Beilstein records and most Gmelin (inorganic) records lack RNs.
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No
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| Chemical Reactions?
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Yes: organic/organometallic reactions from CA since 1985, plus others drawn from various third-party sources, 1840-present.
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No
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Yes: organic reactions (Beilstein) thoroughly to 1959, selectively thereafter. Inorganic/organometallic reactions (Gmelin) selectively to present.
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Yes: over 265,000 representative reactions are included.
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| Chemical Spectra?
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Yes; many experimental IR, UV, NMR, MS plus millions of predicted NMR spectra from ACD Labs.
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No
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Spectral data and literature references for many compounds; no graphical spectra.
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No
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| Links to Electronic Full Text
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Yes, for journals and patents.
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Yes: 
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Yes
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Yes:
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| Automatic Alerts?
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Yes; "Keep Me Posted"
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Yes
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Yes
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No
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| More Information
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SciFinder FAQ
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Citation Searching
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Reaxys Guide
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SoS Guide
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