[
  {
    "molid": "mol8990",
    "smiles": "CC(O)CO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "C[C@H](O)CO",
        "std_free_energy": -7.986055374145508,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "C[C@H]([O-])CO",
        "std_free_energy": 10.188761711120605,
        "relative_population": 0.3023393823642747
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "C[C@H](O)C[O-]",
        "std_free_energy": 9.352579116821289,
        "relative_population": 0.6976606176357254
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 14.9,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 15.1,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]