[
  {
    "molid": "mol438",
    "smiles": "Oc1c(Cl)c(Cl)cc(Cl)c1Cl",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Oc1c(Cl)c(Cl)cc(Cl)c1Cl",
        "std_free_energy": -2.7847700119018555,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]c1c(Cl)c(Cl)cc(Cl)c1Cl",
        "std_free_energy": -5.033020496368408,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 5.14,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Organic Oxygen Acids and Nitrogen Bases"
      },
      {
        "pka_value": 5.44000005722046,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 5.136666667,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]