[
  {
    "molid": "mol11044",
    "smiles": "NCc1ccc(CC(=O)O)cc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "[NH3+]Cc1ccc(CC(=O)[O-])cc1",
        "std_free_energy": -11.461328506469727,
        "relative_population": 0.9999702582752751
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "[NH3+]Cc1ccc(CC(=O)O)cc1",
        "std_free_energy": -5.229464530944824,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.88,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]