[
  {
    "molid": "mol31203",
    "smiles": "OC1C2OC3OC1C(O)C(O3)C2O",
    "microspecies": [
      {
        "id": "-3_1",
        "charge": -3,
        "smiles": "[O-][C@H]1[C@H]2OC3O[C@@H]1[C@H]([O-])[C@H](O3)[C@@H]2[O-]",
        "std_free_energy": 10.020378112792969,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "[O-][C@@H]1[C@@H]2OC3O[C@H]1[C@@H](O)[C@@H](O3)[C@H]2[O-]",
        "std_free_energy": 9.21335220336914,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 17.6,
        "charge_state_pre": -2,
        "charge_state_post": -3,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]