BSY
  -OEChem-05102419303D

  5  4  0     1  0  0  0  0  0999 V2000
   -0.9330   -1.1790   -0.5150 O   0  5  0  0  0  0  0  0  0  0  0  0
    1.5920   -0.2390   -0.4260 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.5540    1.3890   -0.5110 O   0  0  0  0  0  0  0  0  0  0  0  0
   -0.0500    0.0010    0.2950 Se  0  0  1  0  0  0  0  0  0  0  0  0
    2.2660    0.3630   -0.0810 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  4  1  0  0  0  0
  2  4  1  0  0  0  0
  3  4  2  0  0  0  0
  2  5  1  0  0  0  0
M  CHG  1   1  -1
M  END
> <OPENEYE_ISO_SMILES>
O[Se@@](=O)[O-]

> <OPENEYE_INCHI>
InChI=1S/H2O3Se/c1-4(2)3/h(H2,1,2,3)/p-1

> <OPENEYE_INCHIKEY>
MCAHWIHFGHIESP-UHFFFAOYSA-M

> <FORMULA>
HO3Se-

$$$$