SPRESIweb is the online interface to the SPRESI structure and reaction database of 5.62 million compounds and 4.34 million reactions. Parameters that can be searched for include:

  • Chemical structure
  • Chemical reaction
  • Bibliographic information
  • Reaction conditions / name
  • Reaction similarity
  • Catalyst
  • Solvent
  • Yield
  • Physicochemical property

The data searchable via SPRESIweb has been collected by the All-Union Institute of Scientific and Technical Information of the Academy of Sciences in the USSR (VINITI) and the German Zentrale Informationsverarbeitung Chemie in Berlin (ZIC) since 1974.

SPRESIweb allows the Synthesis Tree Searched to retrieve reaction trees to or from a given target molecule. A database of over 600 named reactions is also accessible via SPRESIweb, giving real-life experimental examples of classic literature reactions.

Watch an introductory webinar to InfoChem’s SPRESIweb here.

A factsheet with more information about SPRESIweb can be downloaded here:


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