[
  {
    "molid": "mol34263",
    "smiles": "CCCCCCCCC(=O)NO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CCCCCCCCC(=O)NO",
        "std_free_energy": -6.669615745544434,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCCCCCCCC(=O)N[O-]",
        "std_free_energy": 0.4122987687587738,
        "relative_population": 0.6171774288092912
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "CCCCCCCCC(=O)[N-]O",
        "std_free_energy": 0.8898836970329285,
        "relative_population": 0.3828225711907089
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 10.960000038147,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]