[
  {
    "molid": "mol3749",
    "smiles": "CC(=O)N(C)c1ccncc1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC(=O)N(C)c1ccncc1",
        "std_free_energy": -6.4626312255859375,
        "relative_population": 1.0
      },
      {
        "id": "1_1",
        "charge": 1,
        "smiles": "CC(=O)N(C)c1cc[nH+]cc1",
        "std_free_energy": -2.5794057846069336,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.62,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 4.6199999,
        "charge_state_pre": 1,
        "charge_state_post": 0,
        "data_source": "OCHEM"
      }
    ]
  }
]