[
  {
    "molid": "mol33634",
    "smiles": "OC1=CC=C(Cl)C=[N+]1",
    "microspecies": [],
    "macro_pka_values": [
      {
        "pka_value": 0.01,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      }
    ]
  }
]