[
  {
    "molid": "mol18756",
    "smiles": "CC/C=C1/NC(=O)C(c2ccccc2)=C1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC/C=C1/NC(=O)C(c2ccccc2)=C1O",
        "std_free_energy": -5.619558334350586,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC/C=C1/NC(=O)C(c2ccccc2)=C1[O-]",
        "std_free_energy": -2.7472832202911377,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.6,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Baltruschat ChEMBL"
      }
    ]
  }
]