[
  {
    "molid": "mol2918",
    "smiles": "Cc1ccc2c(=O)c3cccc(CC(=O)O)c3oc2c1C",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Cc1ccc2c(=O)c3cccc(CC(=O)O)c3oc2c1C",
        "std_free_energy": -3.691560745239258,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "Cc1ccc2c(=O)c3cccc(CC(=O)[O-])c3oc2c1C",
        "std_free_energy": -9.022210121154785,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.8,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Novartis"
      }
    ]
  }
]