[
  {
    "molid": "mol28993",
    "smiles": "O=P(O)(O)c1cc(Cl)ccc1Cl",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=P([O-])(O)c1cc(Cl)ccc1Cl",
        "std_free_energy": -11.897361755371094,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "O=P([O-])([O-])c1cc(Cl)ccc1Cl",
        "std_free_energy": -13.559785842895508,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.63,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 6.63000011444092,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]