[
  {
    "molid": "mol32550",
    "smiles": "O=C1CC2C(=O)NC(=O)C2N1",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C1C[C@@H]2C(=O)NC(=O)[C@@H]2N1",
        "std_free_energy": -5.550007343292236,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "O=C1C[C@@H]2C(=O)[N-]C(=O)[C@@H]2N1",
        "std_free_energy": -1.605196237564087,
        "relative_population": 0.4945401931409391
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "O=C1C[C@@H]2C(=O)NC(=O)[C@@H]2[N-]1",
        "std_free_energy": -1.6270363330841064,
        "relative_population": 0.505459806859061
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 8.1499996,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]