Celebrating over 100 years since its first publication, the content of the 96th Edition of the CRC Handbook of Chemistry & Physics is now available online. Learn More

ChemSpider is a free chemical structure database providing fast text and structure search access to over 38 million structures from hundreds of data sources. Learn More

Bordwell pK_a Click here

Evans pK_a Click here

SciFinder® is a research discovery application that provides unlimited access to the world's most comprehensive and authoritative source of references, substances and reactions in chemistry and related sciences. Learn More

SDBS is an integrated spectral database system for organic compounds,which includes 6 different types of spectra under a directory of the compounds. Learn More