CAS No.: 55-06-1
Purity: 98.0%
Appearance: almost white powder
M.F.: C15H11I3NNaO4
M.W: 672.96
Solubility:
Very slightly soluble in water, slightly soluble in alcohol,practically insoluble in most other organic solvents, dissolves in diluted aqueous sodium hydroxide solutions.
Identification:
a) heat about 50 mg with a few drops of sulfuric acid in a porcelain crucible: violet vapors of iodine are evolved.
b) the retention time of the major peak conforms with that of the RS.
Loss on Drying: NMT 4.0%
Specific Rotation: +18 o ~ +22o
Levothyroxine Sodium : NMT 5.0%
Conclusion: Conforms with standard in-house for export
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