[
  {
    "molid": "mol31773",
    "smiles": "C[C@@H](C(=O)O)c1ccc(C(=O)c2cccs2)cc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "C[C@@H](C(=O)O)c1ccc(C(=O)c2cccs2)cc1",
        "std_free_energy": -3.545146942138672,
        "relative_population": 1.0
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "C[C@@H](C(=O)[O-])c1ccc(C(=O)c2cccs2)cc1",
        "std_free_energy": -9.401849746704102,
        "relative_population": 0.999999908596726
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.91,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]