[
  {
    "molid": "mol20651",
    "smiles": "Clc1cccc(N=C2NCCN2)c1Cl",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Clc1cccc(N=C2NCCN2)c1Cl",
        "std_free_energy": -3.4366090297698975,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "Clc1cccc([NH+]=C2NCCN2)c1Cl",
        "std_free_energy": -7.6429643630981445,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.55,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      }
    ]
  }
]