CUO
  -OEChem-08162421293D

  4  4  0     0  0  0  0  0  0999 V2000
    1.0610   -0.1720    0.0000 Cu  0  0  0  0  0  0  0  0  0  0  0  0
   -1.0610   -0.1720    0.0000 Cu  0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    0.6810   -0.6300 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000    0.6820    0.6300 O   0  0  0  0  0  0  0  0  0  0  0  0
  1  3  1  0  0  0  0
  1  4  1  0  0  0  0
  2  3  1  0  0  0  0
  2  4  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
O1[Cu]O[Cu]1

> <OPENEYE_INCHI>
InChI=1S/2Cu.2O

> <OPENEYE_INCHIKEY>
PCGDDKBKPXANNY-UHFFFAOYSA-N

> <FORMULA>
Cu2O2

$$$$