Please submit only sites where the main focus is based around chemical databases either commercial or non-commercial, ranging from petrochemicals through to chemical drugs.
Supplier of advanced chemicals for high throughput screening, combinatorial chemistry, and other drug discovery applications. The chemical database is available online along with a full download in sdf format.
Offers subscriptions to chemical databases as well as free access to Chemindex.
Supplier information for approximately 200000 chemical compounds. Searching for compounds and supplier information is fee based.
Initiative for Chemical Genetics. Freely available collection of data about small molecules (over 2000 compounds) and resources for studying their properties, especially their effects on biology.
A catalog of 60000 fine chemicals searchable for free using a chemist-friendly search engine.
Provides pathways to published research in the world's journal and patent literature through tools such as SciFinder, SciFinder Scholar and STN. CAS databases provide access to over 25 million documents, 26 million chemical substances, and 56 million sequences.
A free database of 350000 chemical compounds. Records consist of name, synonyms, CAS number, molecular formula, and direct links to biomedical resources. Included also over 100000 structures. Searchable by substructure with free Chime plugin.
Online access to major chemical reference works from Chapman and Hall/CRC including Combined Chemical Dictionary (CCD), The Handbook of Chemistry and Physics, Polymers: A Property Database, Properties of Organic Compounds.
Free chemistry search engine which aggregates and indexes chemical structures and their associated information into a single searchable repository.
Commercial database of more than 120,000 3D molecular structures expressed in CML (Chemical Markup Language) format.
Database of thermodynamic and transport properties of pure components and mixtures for use in process design and development and related software package.
News, stock reports, products, directories, classifieds, and profiles of commercially available chemical products; focus reports;
Small molecule database of structures that have primarily been determined using single crystal X-ray diffraction. Features JAVA applets that can be used to orient and examine the molecule, and a dedicated Beowulf computer system to generate high quality rendered images. Currently contains over 2,500 molecules.
Collection of IUPAC databases covering agrochemicals, aqueous solutions, gas kinetics, solubility, stability constants, nomenclature, properties and units in Laboratory Medicine.
Comprising 11 volumes from the IUPAC Solubility Data Series liquids with liquids. A limited number of multi-component (organic-water-salt) systems are also included.
A not-for-profit scientific information service organization featuring, in particular, chemical expertise.
Information about approximately 75000 compounds with liquid crystalline properties. Compound search is free, the compound data are fee based.
Offers a book containing data on over 3000 pesticides and other environmental contaminants.
Database of substances ranging from drugs to hazardous chemicals, maintained by the US National Library of Medicine, Bethesda, Maryland.
Database of organic chemistry compounds, organized by species. Contains chemical and physical property data on over 30,000 compounds.
Comprehensive database of important synthetic reactions, with all published examples of the topic reactions.
Free electronic version of printed Organic Syntheses series - detailed reliable experimental methods for the synthesis of organic compounds.
Describes checked and edited experimental procedures, spanning a broad range of synthetic methodologies. CrossRef(R) and Chemport(R) enabled reference linking.
All annual volumes of Organic Syntheses in ISIS/Base format. Checked and edited experimental synthetic procedures.
Free database of chemical structures of small organic molecules and information on their biological activities. Linked with NIH PubMed/Entrez information retrieval system.
Contains HPLC and GC applications provided by major vendors of chromatography equipment. Can be searched by numerous chromatographic parameters, as well as by structure, substructure, and structural similarity.
Is designed for compilation of experimental researches and calculations of the RADiative and ENergy parameters defining the distribution of intensity in electronic and vibrational spectra of diatomic molecules.
Distributed database used by research crystallographers to store information about 3D molecular structures.
ATR, FT IR, and Raman Spectra of chemicals and other compounds. Includes polymers, solvents, forensics.
A free database of commercially available solvents searchable by many properties. Compiled by National Center for Manufacturing Sciences.
Data collections from Science, Technology and Medicine (STM): AntiBase (natural compound identifier), AmicBase (antimicrobial activity verifier), Mass Spectra (MS) of Pharmaceuticals and Agrochemicals, Infrared Spectra (IR) of Polymers.
Free interactive database of practical and reliable organic, organometallic and inorganic chemical syntheses submitted by synthetic chemists.
Databases and software for thermochemistry.
Free reaction search system offering direct retrieval of reaction precedents. Search based on reaction types and bonding change.
Physical property data for polymers commercially available, with experimentally determined and selected data for over 2,500 polymers. Derived from the Polymer Handbook.
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