Another recent development is the NP navigator , which further bridges the application of cheminformatics in NP research . The NP navigator, publicly available at , is an implementation of the visualization algorithm GTM maps that explores interactively the chemical space of COCONUT (Collection of Open Natural Products database) (currently the largest collection of NPs in the public domain), bioactive molecules in ChEMBL, and purchasable compounds from the ZINC database . Interactive navigation can be used to explore chemical compounds based on different representations such as physicochemical properties, scaffold distribution, commercial availability, and biological activity.