[
  {
    "molid": "mol4627",
    "smiles": "Cn1cnc(=S)c2ccccc21",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "Cn1cnc(=S)c2ccccc21",
        "std_free_energy": -7.040688991546631,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "Cn1c[nH+]c(=S)c2ccccc21",
        "std_free_energy": 4.212038993835449,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 2.96,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]