[
  {
    "molid": "mol38579",
    "smiles": "O=C(O)CC(Cl)(Cl)C(=O)O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(O)CC(Cl)(Cl)C(=O)O",
        "std_free_energy": 1.014722466468811,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C([O-])CC(Cl)(Cl)C(=O)O",
        "std_free_energy": -7.972631454467773,
        "relative_population": 0.2855921669296736
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=C(O)CC(Cl)(Cl)C(=O)[O-]",
        "std_free_energy": -8.889520645141602,
        "relative_population": 0.7144078330703264
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 1.67999994754791,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]