[
  {
    "molid": "mol34157",
    "smiles": "COc1ccc(Cl)c(C(=O)O)c1C(=O)O",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "COc1ccc(Cl)c(C(=O)O)c1C(=O)[O-]",
        "std_free_energy": -8.8174409866333,
        "relative_population": 0.456849181427511
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "COc1ccc(Cl)c(C(=O)[O-])c1C(=O)O",
        "std_free_energy": -8.990474700927734,
        "relative_population": 0.5431508185724889
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "COc1ccc(Cl)c(C(=O)[O-])c1C(=O)[O-]",
        "std_free_energy": -13.10096263885498,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 2.67000007629395,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]