[
  {
    "molid": "mol35154",
    "smiles": "CCC1(C2CCCCC2)C(=O)NC(=O)NC1=O",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCC1(C2CCCCC2)C(=O)[N-]C(=O)NC1=O",
        "std_free_energy": -3.4065351486206055,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "CCC1(C2CCCCC2)C(=O)[N-]C(=O)[N-]C1=O",
        "std_free_energy": 8.260095596313477,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 12.3199996948242,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]