[
  {
    "molid": "mol32963",
    "smiles": "C[C@H](CCC(=O)O)[C@@H]1CC[C@@H]2[C@@H]3[C@H](O)C[C@H]4C[C@H](O)CC[C@]4(C)[C@H]3C[C@@H](O)[C@]21C",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "C[C@H](CCC(=O)O)[C@@H]1CC[C@@H]2[C@@H]3[C@H](O)C[C@H]4C[C@H](O)CC[C@]4(C)[C@H]3C[C@@H](O)[C@]21C",
        "std_free_energy": -4.46849250793457,
        "relative_population": 1.0
      },
      {
        "id": "-1_2",
        "charge": -1,
        "smiles": "C[C@H](CCC(=O)[O-])[C@@H]1CC[C@@H]2[C@@H]3[C@H](O)C[C@H]4C[C@H](O)CC[C@]4(C)[C@H]3C[C@@H](O)[C@]21C",
        "std_free_energy": -8.154452323913574,
        "relative_population": 0.999978198446792
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.98,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      }
    ]
  }
]