[
  {
    "molid": "mol11667",
    "smiles": "COC(=O)C(C)(CC(=O)O)c1ccccc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "COC(=O)[C@@](C)(CC(=O)O)c1ccccc1",
        "std_free_energy": -4.2992095947265625,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "COC(=O)[C@@](C)(CC(=O)[O-])c1ccccc1",
        "std_free_energy": -9.044290542602539,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.46,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 4.46000003814697,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]