Please discover our Framework-Derived Set – a new approach we offer to surf the Chemspace database!

This set is a small but diverse representative library of the Chemspace Screening set. We believe that library design based on the frameworks makes hit expansion and structure-activity studies easy to achieve. From the lead-like part of our in-stock screening collection, we have carefully selected the compounds that have at least 2 "siblings" in means of frameworks. The collection was also prior filtered from PAINS and other undesirable moieties.

To expand the selection, please contact us at