Chemical Abstracts Service (CAS)
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 ove…
Chmoogle: Searching the World's Chemistry
Free chemical structure search engine. Millions of public domain structures. Very fast substructure searching. Results link to data about these structures. Searching for chemical n…
CML Reference Collection
Commercial database of more than 120,000 3D molecular structures expressed in CML (Chemical Markup Language) format.
Fydat - Physical Property Database
Point properties and thermodynamic and transport properties of over 500 common organic compounds and gases. Program calculates mixture properties. Demo version available.
MDLI Information Systems
Provider of chemical structural databases and information management software to the chemical, agrochemical, and pharmaceutical industry.
Nanogen Index 2
Offers a book containing data on over 3000 pesticides and other environmental contaminants.
NIST Chemistry WebBook
Database of organic chemistry compounds, organized by species. Contains chemical and physical property data on over 30,000 compounds.
Organic Syntheses
Free electronic version of printed Organic Syntheses series - detailed reliable experimental methods for the synthesis of organic compounds.
RADEN Data Bank
Is designed for compilation of experimental researches and calculations of the RADiative and ENergy parameters defining the distribution of intensity in electronic and vibrat…
Reciprocal Net
Distributed database used by research crystallographers to store information about 3D molecular structures.
Spectra databases for analytical laboratories
ATR, FT IR, and Raman Spectra of chemicals and other compounds. Includes polymers, solvents, forensics, etc.
SPRESIweb - InfoChem GmbH
The new SpresiWeb developed by InfoChem is an integrated scientific database containing over 4.5 million molecules, 3.5 million reactions, 380,000 references, 98,000 patents cove…
Structure Database of Chemicals with Pharmaceutical Activity
Animations require the Chime plug-in to view. From Oxford University, UK.
Synthetic Pages
Free interactive database of practical and reliable organic, organometallic and inorganic chemical syntheses submitted by synthetic chemists.
The ChemExper Chemicals Directory
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 t…