[
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    "molid": "mol15059",
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    "microspecies": [
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    "macro_pka_values": [
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        "pka_value": 3.72,
        "charge_state_pre": 0,
        "charge_state_post": -1,
        "data_source": "Datawarrior"
      },
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        "pka_value": 2.1,
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        "pka_value": 9.82,
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        "pka_value": 4.93,
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    ]
  }
]