[
  {
    "molid": "mol35760",
    "smiles": "O=C1Cc2ccccc2C(=O)N1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1Cc2ccccc2C(=O)N1",
        "std_free_energy": -5.625307083129883,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1Cc2ccccc2C(=O)[N-]1",
        "std_free_energy": -1.6273741722106934,
        "relative_population": 0.05478024611556563
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=c1[cH-]c2ccccc2c(=O)[nH]1",
        "std_free_energy": -4.475461959838867,
        "relative_population": 0.9452197538844344
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.27000045776367,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]