O
  -OEChem-04192423353D

  1  0  0     0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 O   0  0  0  0  0 15  0  0  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
[O]

> <OPENEYE_INCHI>
InChI=1S/O

> <OPENEYE_INCHIKEY>
QVGXLLKOCUKJST-UHFFFAOYSA-N

> <FORMULA>
O

$$$$