[
  {
    "molid": "mol15289",
    "smiles": "O=C(O)Cn1c2ccccc2c2ccccc21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(O)Cn1c2ccccc2c2ccccc21",
        "std_free_energy": -4.194087028503418,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C([O-])Cn1c2ccccc2c2ccccc21",
        "std_free_energy": -11.204217910766602,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.55,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      }
    ]
  }
]