[
  {
    "molid": "mol33089",
    "smiles": "CC(C)(C)c1cc(O)cc(C(C)(C)C)c1C(=O)O",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(C)(C)c1cc(O)cc(C(C)(C)C)c1C(=O)[O-]",
        "std_free_energy": -8.824767112731934,
        "relative_population": 0.9992352825174314
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "CC(C)(C)c1cc([O-])cc(C(C)(C)C)c1C(=O)[O-]",
        "std_free_energy": -0.3904886245727539,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 10.8,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "OCHEM"
      }
    ]
  }
]