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Chemical Abstracts Service of American Chemical Society: organic, inorganic chemicals, proteins CASNo paid access only 130,000,000 ScrubChem scraped from PubChem "ScrubChem". 2,282,992 SDBS: Spectral Database for Organic Compounds National Institute of Advanced Industrial Science and Technology (AIST), Japan Organic compounds
The CAS database is the most comprehensive repository for data on organic compounds. The search tool SciFinder is offered. The Beilstein database contains information on 9.8 million substances, covers the scientific literature from 1771 to the present, and is today accessible via Reaxys .
Chemical Structures Database - 3D Structures of organic molecules with physical properties. This database is released under the BSD license. R&D Chemicals - Free compound search by chemical name, CAS Number, structure and substructure; See also: PubChem, Entrez, PubMed,GenBank, Chemical database, CAS Registry Number, List of inorganic compounds ...
PubChem is a database of chemical molecules and their activities against biological assays.The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH).
Organic chemistry is a subdiscipline within chemistry involving the scientific study of the structure, properties, and reactions of organic compounds and organic materials, i.e., matter in its various forms that contain carbon atoms. [1]
For example, a chemical database might store a molecule with stereochemistry unspecified, whereas a chemical registry system requires the registrar to specify whether the stereo configuration is unknown, a specific (known) mixture, or racemic. Each of these would be considered a different record in a chemical registry system.
ChemMantis, [14] the Chemistry Markup And Nomenclature Transformation Integrated System uses algorithms to identify and extract chemical names from documents and web pages and converts the chemical names to chemical structures using name-to-structure conversion algorithms and dictionary look-ups in the ChemSpider database. The result is an ...
The Beilstein database is a database in the field of organic chemistry, in which compounds are uniquely identified by their Beilstein Registry Number.The database covers the scientific literature from 1771 to the present and contains experimentally validated information on millions of chemical reactions and substances from original scientific publications.