[
  {
    "molid": "mol35462",
    "smiles": "Cc1cc(/N=N/c2ccc(S(=O)(=O)O)c3ccccc23)cc(C)c1O",
    "microspecies": [
      {
        "id": "-1_4",
        "charge": -1,
        "smiles": "Cc1cc(/N=N/c2ccc(S(=O)(=O)[O-])c3ccccc23)cc(C)c1O",
        "std_free_energy": -9.593525886535645,
        "relative_population": 0.9999679459589901
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "Cc1cc(/N=N/c2ccc(S(=O)(=O)[O-])c3ccccc23)cc(C)c1[O-]",
        "std_free_energy": -1.384475588798523,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.43000030517578,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]