[
  {
    "molid": "mol35964",
    "smiles": "O=C(O)C(C(C(=O)O)=C(c1ccccc1)c1ccccc1)=C(c1ccccc1)c1ccccc1",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C([O-])C(C(C(=O)O)=C(c1ccccc1)c1ccccc1)=C(c1ccccc1)c1ccccc1",
        "std_free_energy": -9.433979034423828,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "O=C([O-])C(C(C(=O)[O-])=C(c1ccccc1)c1ccccc1)=C(c1ccccc1)c1ccccc1",
        "std_free_energy": -11.298469543457031,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.11999988555908,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]