[
  {
    "molid": "mol18854",
    "smiles": "Cc1cccc(S(=O)(=O)Nc2ccc(N)cc2)c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Cc1cccc(S(=O)(=O)Nc2ccc(N)cc2)c1",
        "std_free_energy": -6.467856407165527,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "Cc1cccc(S(=O)(=O)[N-]c2ccc(N)cc2)c1",
        "std_free_energy": -0.756698489189148,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 10.44,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]