Virtual screening based on pharmacophore and prediction of activity spectrum is one of the most popular technologies in medicinal chemistry scientific research. It has been widely used in the discovery of seed compounds, the expansion of seed compounds, the discovery of seed compounds to leads, and lead optimization projects. In the long road from virtual screening of seed compounds to preclinical candidate compounds, the key to success is the appropriate virtual screening library. Pharmacophore-Fragments-based-Virtual-Screening https://www.computabio.com/virtual-screening-service-based-on-pharmacophore-fragments.html