[
  {
    "molid": "mol32425",
    "smiles": "COC1OC(C(=O)O)C(O)C(O)C1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CO[C@@H]1O[C@H](C(=O)O)[C@H](O)[C@@H](O)[C@H]1O",
        "std_free_energy": -3.0589184761047363,
        "relative_population": 1.0
      },
      {
        "id": "-1_4",
        "charge": -1,
        "smiles": "CO[C@@H]1O[C@H](C(=O)[O-])[C@H](O)[C@@H](O)[C@H]1O",
        "std_free_energy": -10.344721794128418,
        "relative_population": 0.9999957668621671
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.55,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]