[
  {
    "molid": "mol1906",
    "smiles": "O=C(O)c1ccc(O)cc1O",
    "microspecies": [
      {
        "id": "0_1",
        "charge": 0,
        "smiles": "O=C(O)c1ccc(O)cc1O",
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      },
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        "pka_value": 3.3,
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        "data_source": "IUPAC digitized pKa"
      },
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        "pka_value": 3.325,
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        "data_source": "IUPAC digitized pKa"
      },
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        "data_source": "IUPAC digitized pKa"
      },
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        "pka_value": 3.29,
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        "data_source": "OCHEM"
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        "pka_value": 3.265,
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        "pka_value": 8.84,
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      {
        "pka_value": 14.0,
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      {
        "pka_value": 15.6,
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]