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Chemical information primarily from Chemical Abstracts, CAS registry, and Medline. Excellent search tool for finding chemical information from journals, patents, conference proceedings, and technical reports. You will need to register if you do not have an account.
Contains experimentally validated substance information from the chemical literature and patents. Especially strong for finding reactions and property data of organic, inorganic, and organometallic substances. Has information formerly in Beilstein and Gmelin Handbooks.