[
  {
    "molid": "mol710",
    "smiles": "O=COO",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=COO",
        "std_free_energy": -3.4123716354370117,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=CO[O-]",
        "std_free_energy": -2.3533692359924316,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.1,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 7.0999999,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 7.09999990463257,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]