[
  {
    "molid": "mol37696",
    "smiles": "CCC(C)C[C@H](N)C(=O)O",
    "microspecies": [
      {
        "id": "0_2",
        "charge": 0,
        "smiles": "CC[C@H](C)C[C@H]([NH3+])C(=O)[O-]",
        "std_free_energy": -12.021247863769531,
        "relative_population": 0.999981525752908
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "CC[C@H](C)C[C@H]([NH3+])C(=O)O",
        "std_free_energy": -3.362720251083374,
        "relative_population": 0.999538351123242
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.25,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      }
    ]
  }
]