[
  {
    "molid": "mol37725",
    "smiles": "CC(=O)OC[C@H](N)C(=O)O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(=O)OC[C@H]([NH3+])C(=O)[O-]",
        "std_free_energy": -11.379514694213867,
        "relative_population": 0.999947248573277
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(=O)OC[C@H](N)C(=O)[O-]",
        "std_free_energy": -6.986329555511475,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.30000019073486,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]