[
  {
    "molid": "mol34063",
    "smiles": "CC(=O)NCP(=O)(O)O",
    "microspecies": [
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "CC(=O)NCP(=O)([O-])O",
        "std_free_energy": -12.358597755432129,
        "relative_population": 0.999950428813864
      },
      {
        "id": "-2_4",
        "charge": -2,
        "smiles": "CC(=O)NCP(=O)([O-])[O-]",
        "std_free_energy": -12.516380310058594,
        "relative_population": 0.9999468814388289
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 6.67000007629395,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]