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        ],
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            "extent": "PARTIAL",
            "extent_amount": {
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              "type": "WEIGHT PERCENT",
              "high": 38.9,
              "low": 35.2,
              "units": "%",
              "references": []
            },
            "molecular_fragment": {
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              "name": "ORGANIC IODINE FRAGMENT",
              "linking_id": "X6WNJ10EEY",
              "ref_pname": "UNSPECIFIED SUBSTANCE",
              "substance_class": "reference"
            },
            "structural_modification_type": "FRAGMENT"
          }
        ]
      },
      "unii": "KZW0R0686Q"
    }
  ]
}