[
  {
    "molid": "mol37757",
    "smiles": "O=C1O[C@H]([C@@H](O)C(=O)O)[C@H](O)[C@@H]1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1O[C@H]([C@@H](O)C(=O)O)[C@H](O)[C@@H]1O",
        "std_free_energy": -2.485678195953369,
        "relative_population": 1.0
      },
      {
        "id": "-1_3",
        "charge": -1,
        "smiles": "O=C1O[C@H]([C@@H](O)C(=O)[O-])[C@H](O)[C@@H]1O",
        "std_free_energy": -9.935999870300293,
        "relative_population": 0.9990517976305756
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 2.75999999046326,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]