[
  {
    "molid": "mol9761",
    "smiles": "CC(C)=CC(=O)C=NO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(C)=CC(=O)C=NO",
        "std_free_energy": -6.317235946655273,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(C)=CC(=O)C=N[O-]",
        "std_free_energy": -0.8339402675628662,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.9,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 8.8999996,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 8.89999961853027,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]