[
  {
    "molid": "mol8960",
    "smiles": "CC[As](=O)(O)O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "CC[As](=O)(O)O",
        "std_free_energy": -2.5319876670837402,
        "relative_population": 1.0
      },
      {
        "id": "-1_1",
        "charge": -1,
        "smiles": "CC[As](=O)([O-])O",
        "std_free_energy": -10.2598876953125,
        "relative_population": 1.0
      },
      {
        "id": "-2_1",
        "charge": -2,
        "smiles": "CC[As](=O)([O-])[O-]",
        "std_free_energy": -7.486605644226074,
        "relative_population": 1.0
      }
    ],
    "macro_pka_values": [
      {
        "pka_value": 4.72,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 4.19,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 3.89000010490417,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "QSARToolbox"
      },
      {
        "pka_value": 8.0,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "IUPAC digitized pKa"
      },
      {
        "pka_value": 8.05,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "OCHEM"
      },
      {
        "pka_value": 8.35000038146973,
        "charge_state_pre": -1,
        "charge_state_post": -2,
        "data_source": "QSARToolbox"
      }
    ]
  }
]