[
  {
    "molid": "mol33487",
    "smiles": "O=CC(O)C(O)C(O)C(O)CO",
    "microspecies": [
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=C[C-](O)[C@H](O)[C@@H](O)[C@@H](O)CO",
        "std_free_energy": -2.8413405418395996,
        "relative_population": 0.9995801717215227
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        "id": "-2_4",
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        "smiles": "O=C[C-](O)[C@H](O)[C@@H](O)[C@@H]([O-])CO",
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        "relative_population": 0.09835975145346075
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        "id": "-2_9",
        "charge": -2,
        "smiles": "O=C[C-]([O-])[C@H](O)[C@@H](O)[C@@H](O)CO",
        "std_free_energy": 5.131570816040039,
        "relative_population": 0.3388516962954729
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        "id": "-2_12",
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        "smiles": "O=C[C-](O)[C@H](O)[C@@H]([O-])[C@@H](O)CO",
        "std_free_energy": 6.887549877166748,
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      {
        "id": "-2_14",
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        "smiles": "O=C[C-](O)[C@H](O)[C@@H](O)[C@@H](O)C[O-]",
        "std_free_energy": 4.955934047698975,
        "relative_population": 0.40391291829287906
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    ],
    "macro_pka_values": [
      {
        "pka_value": 12.43,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "OCHEM"
      }
    ]
  }
]