[
  {
    "molid": "mol2344",
    "smiles": "CCCCc1cc(C)c(O)cc1C",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CCCCc1cc(C)c(O)cc1C",
        "std_free_energy": -7.097185134887695,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCCCc1cc(C)c([O-])cc1C",
        "std_free_energy": 2.801912546157837,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 10.74,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]