[
  {
    "molid": "mol21890",
    "smiles": "O=P(O)(O)P(=O)(O)O",
    "microspecies": [],
    "macro_pka_values": [
      {
        "pka_value": 10.1,
        "charge_state_pre": -3,
        "charge_state_post": -4,
        "data_source": "AttenGpKa training set"
      },
      {
        "pka_value": 2.2,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "AttenGpKa training set"
      },
      {
        "pka_value": 2.9,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "AttenGpKa training set"
      },
      {
        "pka_value": 7.4,
        "charge_state_pre": -2,
        "charge_state_post": -3,
        "data_source": "AttenGpKa training set"
      }
    ]
  }
]