[
  {
    "molid": "mol20018",
    "smiles": "Nc1cccc(Cn2c(-c3ccccc3)ccc2-c2ccccc2)n1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Nc1cccc(Cn2c(-c3ccccc3)ccc2-c2ccccc2)n1",
        "std_free_energy": -5.320462226867676,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "[NH3+]c1cccc(Cn2c(-c3ccccc3)ccc2-c2ccccc2)n1",
        "std_free_energy": -4.0770978927612305,
        "relative_population": 0.20569106612233293
      },
      {
        "id": "1_2",
        "charge": 1,
        "smiles": "Nc1cccc(Cn2c(-c3ccccc3)ccc2-c2ccccc2)[nH+]1",
        "std_free_energy": -5.428194999694824,
        "relative_population": 0.7943089338776671
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.86,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "Baltruschat ChEMBL"
      }
    ]
  }
]