[
  {
    "molid": "mol35778",
    "smiles": "O=C1OC(c2c[nH]c3ccccc23)(c2c[nH]c3ccccc23)c2ccccc21",
    "microspecies": [
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1OC(c2c[n-]c3ccccc23)(c2c[nH]c3ccccc23)c2ccccc21",
        "std_free_energy": 7.464171409606934,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "O=C1OC(c2c[n-]c3ccccc23)(c2c[n-]c3ccccc23)c2ccccc21",
        "std_free_energy": 8.989191055297852,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 10.6999998092651,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]