The structural diversity of LANaPDB was quantified with two types of molecular representations, molecular scaffolds and fingerprints. The diversity was compared with COCONUT and FDA-approved small-molecule drugs. The scaffold diversity of all data sets was measured with cumulative scaffold recovery (CSR) curves that represent the fraction of molecules in the data set contained in a fraction of scaffolds. To generate the CSR curves, the scaffolds are ordered by their frequency of occurrence (most to least common). Then, the fraction of scaffolds is plotted on the x-axis and the fraction of compounds that contain those scaffolds on the y-axis.