mol
What is a .mol file?
chemical/x-mdl-molfile
An MDL Molfile (.mol) is a plain-text chemical structure format describing a single molecule: a counts line, an atom block with element symbols and 2D or 3D coordinates, and a bond block listing connections and orders. It is a core part of the SDF format and is read by nearly every cheminformatics tool.
How to use a .mol file
Use an example .mol file to test molecule parsers and viewers (RDKit, Open Babel, Jmol), structure-format converters (MOL to SMILES, SDF, or PDB), and cheminformatics pipelines.