[
  {
    "molid": "mol1950",
    "smiles": "C=CCO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "C=CCO",
        "std_free_energy": -8.81645393371582,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "C=CC[O-]",
        "std_free_energy": 11.305171966552734,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 15.5,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 15.52,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 15.5200004577637,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 15.1199998855591,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]