[
  {
    "molid": "mol15301",
    "smiles": "O=C1Oc2ccccc2C(=O)C1Cc1c(O)c2ccccc2oc1=O",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1Oc2ccccc2C(=O)[C@@H]1Cc1c([O-])c2ccccc2oc1=O",
        "std_free_energy": -8.378738403320312,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "O=c1oc2ccccc2c([O-])c1C[c-]1c(=O)oc2ccccc2c1=O",
        "std_free_energy": -4.119019508361816,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.3,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 8.3000002,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "OCHEM"
      }
    ]
  }
]