CUZ
  -OEChem-05102419523D

  5  9  0     0  0  0  0  0  0999 V2000
  109.4450   32.4900   -5.7870 Cu  0  0  0  0  0  0  0  0  0  0  0  0
  112.0560   34.4380   -5.1060 Cu  0  0  0  0  0  0  0  0  0  0  0  0
  110.6440   34.0650   -8.0970 Cu  0  0  0  0  0  0  0  0  0  0  0  0
  108.2260   33.9300   -7.4370 Cu  0  0  0  0  0  0  0  0  0  0  0  0
  109.8220   34.7420   -5.7210 S   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
  1  5  1  0  0  0  0
  2  3  1  0  0  0  0
  2  4  1  0  0  0  0
  2  5  1  0  0  0  0
  3  4  1  0  0  0  0
  3  5  1  0  0  0  0
  4  5  1  0  0  0  0
M  END
> <OPENEYE_ISO_SMILES>
S123[Cu]4[Cu]15[Cu]24[Cu]35

> <OPENEYE_INCHI>
InChI=1S/4Cu.S

> <OPENEYE_INCHIKEY>
IGIWMDIIFLPFOP-UHFFFAOYSA-N

> <FORMULA>
Cu4S

$$$$