This service provides topology and parameters for small organic molecules compatible with the CHARMM all atoms force field, for use with CHARMM and GROMACS.
If you use this web tool, please, cite the following paper: Zoete V, Cuendet MA, Grosdidier A, Michielin O. SwissParam: a fast force field generation tool for small organic molecules. J. Comput. Chem., 2011, 32(11), 2359-68.
1. Submit the query molecule
Upload a MOL2 file (only 1 molecule, with all hydrogen atoms),
or paste a SMILES in the box, or draw a molecule in the sketcher

2. Launch parameterization

(Provide a query molecule before submitting)