[
  {
    "molid": "mol30900",
    "smiles": "Cc1ccc(O)c(/N=N/c2ccc(S(=O)(=O)O)cc2)c1",
    "microspecies": [
      {
        "id": "-1_4",
        "charge": -1,
        "smiles": "Cc1ccc(O)c(/N=N/c2ccc(S(=O)(=O)[O-])cc2)c1",
        "std_free_energy": -10.21755313873291,
        "relative_population": 0.9999292511658509
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "Cc1ccc([O-])c(/N=N/c2ccc(S(=O)(=O)[O-])cc2)c1",
        "std_free_energy": -2.1903505325317383,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.24,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]