U1
  -OEChem-04192423173D

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

> <OPENEYE_INCHI>
InChI=1S/U

> <OPENEYE_INCHIKEY>
JFALSRSLKYAFGM-UHFFFAOYSA-N

> <FORMULA>
U

$$$$