[
  {
    "molid": "mol38556",
    "smiles": "O=C(NO)C(O)C(O)C(O)C(O)CO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(NO)[C@@H](O)[C@H](O)[C@H](O)[C@H](O)CO",
        "std_free_energy": -6.775505065917969,
        "relative_population": 1.0
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=C(N[O-])[C@@H](O)[C@H](O)[C@H](O)[C@H](O)CO",
        "std_free_energy": -1.2582801580429077,
        "relative_population": 0.5548803371633868
      },
      {
        "id": "-1_5",
        "charge": -1,
        "smiles": "O=C([N-]O)[C@@H](O)[C@H](O)[C@H](O)[C@H](O)CO",
        "std_free_energy": -1.0212836265563965,
        "relative_population": 0.43779727041729044
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.9399995803833,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]