[
  {
    "molid": "mol14286",
    "smiles": "NCCCCCCCCCCCC(=O)O",
    "microspecies": [
      {
        "id": "0_2",
        "charge": 0,
        "smiles": "[NH3+]CCCCCCCCCCCC(=O)[O-]",
        "std_free_energy": -11.08741283416748,
        "relative_population": 0.9999860117487241
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "[NH3+]CCCCCCCCCCCC(=O)O",
        "std_free_energy": -6.737321853637695,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.65,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "Datawarrior"
      },
      {
        "pka_value": 4.6500001,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 4.648,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 4.65000009536743,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 4.64799976348877,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "QSARToolbox"
      }
    ]
  }
]