[
  {
    "molid": "mol37755",
    "smiles": "O=C(O)[C@H](O)[C@@H](OP(=O)(O)O)C(=O)O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(O)[C@H](O)[C@@H](OP(=O)(O)O)C(=O)O",
        "std_free_energy": 3.2465410232543945,
        "relative_population": 1.0
      },
      {
        "id": "-1_3",
        "charge": -1,
        "smiles": "O=C(O)[C@H](O)[C@@H](OP(=O)(O)O)C(=O)[O-]",
        "std_free_energy": -6.950719356536865,
        "relative_population": 0.2689723224115322
      },
      {
        "id": "-1_4",
        "charge": -1,
        "smiles": "O=C(O)[C@H](O)[C@@H](OP(=O)([O-])O)C(=O)O",
        "std_free_energy": -7.190263271331787,
        "relative_population": 0.34177492228777273
      },
      {
        "id": "-1_5",
        "charge": -1,
        "smiles": "O=C([O-])[C@H](O)[C@@H](OP(=O)(O)O)C(=O)O",
        "std_free_energy": -7.306892395019531,
        "relative_population": 0.3840533680114313
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 1.70000004768372,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      }
    ]
  }
]