[
  {
    "molid": "mol1999",
    "smiles": "COCCO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "COCCO",
        "std_free_energy": -7.8179521560668945,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "COCC[O-]",
        "std_free_energy": 11.368709564208984,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 14.8,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 14.88,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 14.82,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 14.8000001907349,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 14.8800001144409,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]