.. _Compare_molecules_using_InChI: Compare molecules using InChI (k) ================================= **A utility format that allows you to compare molecules using their InChIs** The first molecule is compared with the rest, e.g.:: babel first.smi second.mol third.cml -ok This is the same as using ``-oinchi -xet`` and can take the same options as InChI format (see :ref:`InChI_format`). .. note:: This is a write-only format.