[
  {
    "molid": "mol35357",
    "smiles": "Cc1cc(O)c(-c2c(O)cc(C)cc2O)c(O)c1",
    "microspecies": [
      {
        "id": "-4_1",
        "charge": -4,
        "smiles": "Cc1cc([O-])c(-c2c([O-])cc(C)cc2[O-])c([O-])c1",
        "std_free_energy": 14.328201293945312,
        "relative_population": 1.0
      },
      {
        "id": "-3_1",
        "charge": -3,
        "smiles": "Cc1cc([O-])c(-c2c([O-])cc(C)cc2O)c([O-])c1",
        "std_free_energy": 7.70562744140625,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.03999996185303,
        "charge_state_pre": -3,
        "charge_state_post": -4,
        "data_source": "QSARToolbox"
      }
    ]
  }
]