[
  {
    "molid": "mol37360",
    "smiles": "O=C1/C(=N/O)C=Cc2nsnc21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1/C(=N/O)C=Cc2nsnc21",
        "std_free_energy": -5.049525737762451,
        "relative_population": 0.9999996922756944
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1/C(=N/[O-])C=Cc2nsnc21",
        "std_free_energy": -5.1480817794799805,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.13000011444092,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]