[
  {
    "molid": "mol15655",
    "smiles": "CCCCCc1c(-c2ccccc2)nn(-c2ccccc2)c1O",
    "microspecies": [
      {
        "id": "0_2",
        "charge": 0,
        "smiles": "CCCCCc1c(-c2ccccc2)nn(-c2ccccc2)c1O",
        "std_free_energy": -6.103436470031738,
        "relative_population": 0.9999975830126173
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCCCCc1c(-c2ccccc2)nn(-c2ccccc2)c1[O-]",
        "std_free_energy": -3.911180019378662,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.3,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 7.3000002,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]