[
  {
    "molid": "mol32494",
    "smiles": "CC(C)(C=CC(=O)O)c1cc([N+](=O)[O-])ccc1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(C)(C=CC(=O)O)c1cc([N+](=O)[O-])ccc1O",
        "std_free_energy": -3.079568862915039,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(C)(C=CC(=O)[O-])c1cc([N+](=O)[O-])ccc1O",
        "std_free_energy": -8.522205352783203,
        "relative_population": 0.9754742771790498
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.2600002,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]