Iodide (123I1-)
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Iodide (123I1-)
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CAS No:
69239-56-1
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Formula:
I
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Chemical Name:
Iodide (123I1-)
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Synonyms:
Iodide (123I1-);Iodide-123
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CAS No:
Description
Iodide I-123 (as sodium Iodide I-123) is a radioactive isotope of iodine used in nuclear medicine for the diagnostic study of thyroid disease. Following oral administration, I-123 is absorbed through the gastrointestinal tract and is taken up by the thyroid gland. After incorporation, a gamma camera is used to detect the decay by electron capture to tellurium-123. Iodine is commonly used in thyroid function diagnostic tests as this gland normally absorbs iodine through the diet for formation of the thyroid hormones triiodothyronine (T3) and its prohormone, thyroxine (T4). Radioactive I-123 in particular is effective for this use as its half-life of approximately 13.13 h (hours) is ideal for the 24-h (hour) iodine uptake test and it has a reduced radiation burden as compared to I-131.
Drug Information
Administration of Sodium Iodide I 123 Capsules is indicated as a diagnostic procedure to be used in evaluating thyroid function and/or morphology.|FDA Label
Iodine-123 decays by electron capture with a physical half-life of 13.2 hours
Sodium Iodide I-123 is a radioactive isotope of iodine used in nuclear medicine for the diagnostic study of thyroid disease. Following oral administration, I-123 is absorbed through the gastrointestinal tract and is taken up by the thyroid gland. After incorporation, a gamma camera is used to detect the decay by electron capture to tellurium-123. Iodine is commonly used in thyroid function diagnostic tests as this gland normally absorbs iodine through the diet for formation of the thyroid hormones triiodothyronine (T3) and its prohormone, thyroxine (T4).
Computed Properties
Molecular Weight:122.90559
XLogP3:0.9
Hydrogen Bond Acceptor Count:1
Exact Mass:122.90559
Monoisotopic Mass:122.90559
Heavy Atom Count:1
Formal Charge:-1
Isotope Atom Count:1
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
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