[
  {
    "molid": "mol32362",
    "smiles": "O=C1C(O)=C(C=Cc2ccccc2)C(=O)c2ccccc21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1C(O)=C(C=Cc2ccccc2)C(=O)c2ccccc21",
        "std_free_energy": -2.325507640838623,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1C([O-])=C(C=Cc2ccccc2)C(=O)c2ccccc21",
        "std_free_energy": -7.277806282043457,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.4400001,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]