The EFC BlocDetect Kit, a member of the Synergy™ Product Line, is used to identify compounds that inhibit β-gal complementation or β-gal activity. As described below, β-gal complementation is DiscoveRx’s core technology for both cell-based as well as biochemical assays. The assay has been validated for use in both 96-well and 384-well microplate formats. This kit is a companion product for DiscoveRx’s PathHunter® and HitHunter® Product Lines.