[
  {
    "molid": "mol10462",
    "smiles": "CC(=O)C(C)C(=O)C(C)C",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(=O)[C@@H](C)C(=O)C(C)C",
        "std_free_energy": -6.6764655113220215,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC(=O)[C-](C)C(=O)C(C)C",
        "std_free_energy": 5.599485397338867,
        "relative_population": 0.8887951051865679
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "CC(=O)[C@@H](C)C(=O)[C-](C)C",
        "std_free_energy": 7.679588317871094,
        "relative_population": 0.11102593365578768
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 11.8,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      }
    ]
  }
]