[
  {
    "molid": "mol37238",
    "smiles": "C[C@@H](C[C@@H](N)C(=O)O)C(=O)O",
    "microspecies": [
      {
        "id": "-1_3",
        "charge": -1,
        "smiles": "C[C@@H](C[C@@H]([NH3+])C(=O)[O-])C(=O)[O-]",
        "std_free_energy": -14.08632755279541,
        "relative_population": 0.9993391406650103
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "C[C@@H](C[C@@H](N)C(=O)[O-])C(=O)[O-]",
        "std_free_energy": -7.298945426940918,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 9.39999961853027,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]