[
  {
    "molid": "mol13356",
    "smiles": "CC1(C)[C@H]2CC[C@@]1(C)[C@@H](O)[C@@H]2C(=O)O",
    "microspecies": [],
    "macro_pka_values": [
      {
        "pka_value": 2.74,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      }
    ]
  }
]