metal_sdf/CL_ideal.sdf

CL
  -OEChem-03292418433D

  1  0  0     0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 Cl  0  5  0  0  0  0  0  0  0  0  0  0
M  CHG  1   1  -1
M  END
> <OPENEYE_ISO_SMILES>
[Cl-]

> <OPENEYE_INCHI>
InChI=1S/ClH/h1H/p-1

> <OPENEYE_INCHIKEY>
VEXZGXHMUGYJMC-UHFFFAOYSA-M

> <FORMULA>
Cl-

$$$$