[
  {
    "molid": "mol23235",
    "smiles": "CC(C)(C)C(=O)Nc1cccc(NC(=O)C(C)(C)C)c1C(=O)O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(C)(C)C(=O)Nc1cccc(NC(=O)C(C)(C)C)c1C(=O)O",
        "std_free_energy": -3.7283101081848145,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(C)(C)C(=O)Nc1cccc(NC(=O)C(C)(C)C)c1C(=O)[O-]",
        "std_free_energy": -10.143611907958984,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.09999990463257,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]