Subscription based online library providing information to rubber, plastic, and polymer industries.

Searchable database for publications and resources about the effect of hazardous substances on public health and the environment.

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. Products are listed with physical data including IR spectra and MSDS. Contributions to the database possible with dedicated (and free) program.

News, stock reports, products, directories, classifieds, and profiles of commercially available chemical products; focus reports;

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.

Free database containing thermochemistry data for over 400 compounds relevant to high-temperature processes used in materials synthesis. Searching by molecular formula.

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.

ChemSpider is a 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.

Comprehensive database of value-added patent documents. 1.5 million patent documents from 41 patent-issuing authorities are added into the database each year.