[
  {
    "molid": "mol9824",
    "smiles": "CCOP(=O)(CC(=O)O)OCC",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CCOP(=O)(CC(=O)O)OCC",
        "std_free_energy": -3.408358097076416,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CCOP(=O)(CC(=O)[O-])OCC",
        "std_free_energy": -9.916373252868652,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 3.3,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 3.48000001907349,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 3.29999995231628,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]