HP4
  -OEChem-11082420203D

  5  4  0     0  0  0  0  0  0999 V2000
    0.0000   -0.4140    0.0000 P   0  0  0  0  0  0  0  0  0  0  0  0
   -1.2620    0.4780   -0.0000 O   0  5  0  0  0  0  0  0  0  0  0  0
    1.2620    0.4780   -0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -1.2340    1.1590 H   0  0  0  0  0  0  0  0  0  0  0  0
    0.0000   -1.2340   -1.1590 H   0  0  0  0  0  0  0  0  0  0  0  0
  1  3  2  0  0  0  0
  1  2  1  0  0  0  0
  1  4  1  0  0  0  0
  1  5  1  0  0  0  0
M  CHG  1   2  -1
M  END
> <OPENEYE_ISO_SMILES>
[O-][PH2]=O

> <OPENEYE_INCHI>
InChI=1S/H3O2P/c1-3-2/h3H2,(H,1,2)/p-1

> <OPENEYE_INCHIKEY>
ACVYVLVWPXVTIT-UHFFFAOYSA-M

> <FORMULA>
H2O2P-

$$$$