[
  {
    "molid": "mol35937",
    "smiles": "O=[N+]([O-])c1cccc(Nc2nnn[nH]2)c1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=[N+]([O-])c1cccc(Nc2nnn[nH]2)c1",
        "std_free_energy": -5.699516773223877,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=[N+]([O-])c1cccc(Nc2nnn[n-]2)c1",
        "std_free_energy": -7.628378391265869,
        "relative_population": 0.9982050670026066
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 5.06500005722046,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]