Based on the ChemDraw® drawing tool, the chemical intelligence in Lead Discovery 5.1 provides scientists using TIBCO Spotfire® software with chemical structure searching and visualization. Users can filter experimental datasets by chemical structure and pinpoint structural features and scaffolds in the output from their medicinal and combinatorial chemistry programs. The technology enables users to mine their chemical databases to identify compounds that have similar chemical structures. Lead Discovery 5.1 can also automatically analyze and display R-groups or substituent variations on similar chemical scaffolds.