is a free, open-source program designed for high-throughput chemometric analysis of Molecular Interaction Fields (MIFs) . It is primarily used in pharmacophore exploration and ligand-based drug design to build statistical models that correlate the 3D structures of molecules with their biological activities. Key Technical Features

Most 3D-QSAR work historically required Sybyl or MOE. Open3DQSAR works standalone or with , R , and Python , making it reproducible and accessible.

Open the log file. Look for:

❌ No built-in molecular alignment – requires external software ❌ No GUI (command-line only) – steeper learning curve ❌ Limited visualization – requires external tools for contour plotting ❌ Not suitable for very large libraries (>10k compounds) without subsampling

load my_model.ply # Color by field value set mesh_color, blue, my_model

: The software features a scriptable interface that allows for the automated building and evaluation of thousands of potential pharmacophore hypotheses.

git clone https://github.com/Open3DQSAR/Open3DQSAR.git cd Open3DQSAR make sudo make install