[
  {
    "molid": "mol34210",
    "smiles": "O=C1O[C@H]([C@@H](O)CO)C(=O)C1=O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1O[C@H]([C@@H](O)CO)C(=O)C1=O",
        "std_free_energy": -5.660228729248047,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1O[C-]([C@@H](O)CO)C(=O)C1=O",
        "std_free_energy": -4.684177875518799,
        "relative_population": 0.9999805640708355
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.90000009536743,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]