[
  {
    "molid": "mol38246",
    "smiles": "O=C(Oc1ccccc1)c1c(O)cccc1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(Oc1ccccc1)c1c(O)cccc1O",
        "std_free_energy": -5.371069431304932,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C(Oc1ccccc1)c1c([O-])cccc1O",
        "std_free_energy": -2.8434982299804688,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.07999992370606,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]