[
  {
    "molid": "mol6580",
    "smiles": "COC(=O)c1cc(C(=O)OC)c(C(=O)OC)nc1C(=O)OC",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "COC(=O)c1cc(C(=O)OC)c(C(=O)OC)nc1C(=O)OC",
        "std_free_energy": -2.78672456741333,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "COC(=O)c1cc(C(=O)OC)c(C(=O)OC)[nH+]c1C(=O)OC",
        "std_free_energy": 7.325787544250488,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 1.99,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 1.99000000953674,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      }
    ]
  }
]