[
  {
    "molid": "mol34323",
    "smiles": "O=C(O)c1ccc(Cl)c(N=Nc2ccc(O)cc2)c1",
    "microspecies": [
      {
        "id": "0_2",
        "charge": 0,
        "smiles": "O=C(O)c1ccc(Cl)c(N=Nc2ccc(O)cc2)c1",
        "std_free_energy": -3.7111735343933105,
        "relative_population": 0.9996700207100971
      },
      {
        "id": "-1_4",
        "charge": -1,
        "smiles": "O=C([O-])c1ccc(Cl)c(N=Nc2ccc(O)cc2)c1",
        "std_free_energy": -9.876757621765137,
        "relative_population": 0.9992830642885911
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.63000011444092,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]