[
  {
    "molid": "mol37577",
    "smiles": "Oc1ccc(/N=N/c2ccccc2)cc1O",
    "microspecies": [
      {
        "id": "0_4",
        "charge": 0,
        "smiles": "Oc1ccc(/N=N/c2ccccc2)cc1O",
        "std_free_energy": -6.533730983734131,
        "relative_population": 0.9999899416738981
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]c1ccc(/N=N/c2ccccc2)cc1O",
        "std_free_energy": -2.608581304550171,
        "relative_population": 0.5641565678016468
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "[O-]c1cc(/N=N/c2ccccc2)ccc1O",
        "std_free_energy": -2.3503875732421875,
        "relative_population": 0.43578024199074616
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.63000011444092,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]