[
  {
    "molid": "mol13353",
    "smiles": "CC1(C)[C@@H]2CC[C@]1(C)C(=O)C2C(=O)O",
    "microspecies": [],
    "macro_pka_values": [
      {
        "pka_value": 3.76,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      }
    ]
  }
]