[
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    "molid": "mol8124",
    "smiles": "Nc1nc(N)c2nc(C(=O)O)cnc2n1",
    "microspecies": [
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    "macro_pka_values": [
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        "pka_value": 1.94,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "IUPAC digitized pKa"
      },
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        "data_source": "IUPAC digitized pKa"
      },
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        "data_source": "IUPAC digitized pKa"
      },
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        "data_source": "IUPAC digitized pKa"
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    ]
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]