[
  {
    "molid": "mol33759",
    "smiles": "O=C1c2ccccc2C(=O)c2c(O)c(O)cc(O)c21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1c2ccccc2C(=O)c2c(O)c(O)cc(O)c21",
        "std_free_energy": -4.516858100891113,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1c2ccccc2C(=O)c2c(O)c(O)cc([O-])c21",
        "std_free_energy": -2.217435121536255,
        "relative_population": 0.18333081638391363
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=C1c2ccccc2C(=O)c2c(O)c([O-])cc(O)c21",
        "std_free_energy": -3.447192430496216,
        "relative_population": 0.6270646024959782
      },
      {
        "id": "-1_3",
        "charge": -1,
        "smiles": "O=C1c2ccccc2C(=O)c2c([O-])c(O)cc(O)c21",
        "std_free_energy": -2.2510836124420166,
        "relative_population": 0.18960458112010814
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.69999980926514,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]