D8U
  -OEChem-04262419523D

  1  0  0     0  0  0  0  0  0999 V2000
    0.0000    0.0000    0.0000 H   1  3  0  0  0  0  0  0  0  0  0  0
M  CHG  1   1   1
M  ISO  1   1   2
M  END
> <OPENEYE_ISO_SMILES>
[2H+]

> <OPENEYE_INCHI>
InChI=1S/p+1/i/hD

> <OPENEYE_INCHIKEY>
GPRLSGONYQIRFK-DYCDLGHISA-N

> <FORMULA>
H+

$$$$
