[
  {
    "molid": "mol9670",
    "smiles": "NC(=O)c1cc2[nH]nnc2nc1N",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "NC(=O)c1cc2[nH]nnc2nc1N",
        "std_free_energy": -7.036359786987305,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "NC(=O)c1cc2[n-]nnc2nc1N",
        "std_free_energy": -4.296548843383789,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 5.35,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]