[
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    "molid": "mol13155",
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    ],
    "macro_pka_values": [
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        "pka_value": 8.43,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      },
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        "data_source": "OCHEM"
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        "data_source": "QSARToolbox"
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        "pka_value": 11.9,
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        "data_source": "Datawarrior"
      }
    ]
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]