PO3
  -OEChem-04192423353D

  4  3  0     0  0  0  0  0  0999 V2000
   20.6000   16.6300    4.2880 P   0  5  0  0  0  0  0  0  0  0  0  0
   21.4190   17.0620    3.1090 O   0  0  0  0  0  0  0  0  0  0  0  0
   21.0590   15.3560    4.9540 O   0  5  0  0  0  0  0  0  0  0  0  0
   20.2350   17.7380    5.2410 O   0  5  0  0  0  0  0  0  0  0  0  0
  1  2  2  0  0  0  0
  1  3  1  0  0  0  0
  1  4  1  0  0  0  0
M  CHG  3   1  -1   3  -1   4  -1
M  END
> <OPENEYE_ISO_SMILES>
[O-][P-](=O)[O-]

> <OPENEYE_INCHI>
InChI=1S/O3P/c1-4(2)3/q-3

> <OPENEYE_INCHIKEY>
AQSJGOWTSHOLKH-UHFFFAOYSA-N

> <FORMULA>
O3P-3

$$$$