[
  {
    "molid": "mol12814",
    "smiles": "Oc1cc(-c2ccccc2)no1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Oc1cc(-c2ccccc2)no1",
        "std_free_energy": -3.4545187950134277,
        "relative_population": 0.9988350020200474
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "[O-]c1cc(-c2ccccc2)no1",
        "std_free_energy": -10.181413650512695,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.01,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 4.0100002,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]