[
  {
    "molid": "mol13454",
    "smiles": "O=[N+]([O-])c1ccc2cc(O)ccc2c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=[N+]([O-])c1ccc2cc(O)ccc2c1",
        "std_free_energy": -5.130234241485596,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=[N+]([O-])c1ccc2cc([O-])ccc2c1",
        "std_free_energy": -2.8518199920654297,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.69,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 7.6900001,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]