[
  {
    "molid": "mol38496",
    "smiles": "CCN(CC)CC(=O)NN",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CCN(CC)CC(=O)NN",
        "std_free_energy": -4.7961106300354,
        "relative_population": 1.0
      },
      {
        "id": "1_3",
        "charge": 1,
        "smiles": "CC[NH+](CC)CC(=O)NN",
        "std_free_energy": -8.239779472351074,
        "relative_population": 0.9897680635621177
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 7.78000020980835,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      }
    ]
  }
]