[
  {
    "molid": "mol7860",
    "smiles": "OC1NC=Nc2c(Cl)cccc21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O[C@H]1NC=Nc2c(Cl)cccc21",
        "std_free_energy": -6.502180576324463,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "O[C@H]1NC=[NH+]c2c(Cl)cccc21",
        "std_free_energy": -3.2225661277770996,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.55,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]