[
  {
    "molid": "mol35310",
    "smiles": "C/C(=N/N)C(=O)O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "C/C(=N/N)C(=O)O",
        "std_free_energy": -4.065399169921875,
        "relative_population": 0.42856534991848244
      },
      {
        "id": "0_2",
        "charge": 0,
        "smiles": "C/C(=N/[NH3+])C(=O)[O-]",
        "std_free_energy": -4.314204216003418,
        "relative_population": 0.5496316249731011
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "C/C(=N/N)C(=O)[O-]",
        "std_free_energy": -9.21272087097168,
        "relative_population": 0.999954616575271
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.34999990463257,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]