[
  {
    "molid": "mol11990",
    "smiles": "CCCCC(CC)CC1(CC)C(=O)NC(=O)NC1=O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CCCC[C@@H](CC)CC1(CC)C(=O)NC(=O)NC1=O",
        "std_free_energy": -6.420797824859619,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCCC[C@@H](CC)CC1(CC)C(=O)[N-]C(=O)NC1=O",
        "std_free_energy": -2.729058265686035,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.89,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 7.8899998664856,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]