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Specification
Product Name: L-Thyroxine sodium salt hydrate |
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CAS No£º25416-65-3 |
Catalog No.£º LX2026 |
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Molecular Formula£ºC15H10I4NNaO4¡¤xH2O |
Molecular Weight£º798.86(anhydrous) |
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Storage: Store at 0-5¡ãC |
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Test Item |
Specification |
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Appearance |
An almost white or slightly brownish-yellow powder or a fine crystalline powder |
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Identification by NMR |
Consistent with structure |
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Identification By Ignition |
It decomposes and liberates iodine vapors |
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|
A pink color is produced |
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Water Content |
¡Ü11.0% |
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Optical Rotation |
-5o ~ -6o |
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Purity by HPLC |
¡Ý97.5% |
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Related Substances (HPLC): |
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RRT0.65-0.70 (Liothyronine) |
NMT 1.0% |
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RRT 1.50-1.86 (N-Acetyl-T4) |
NMT 1.0% |
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Any other individual impurity |
NMT 2.0% |
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Total impurities |
NMT 2.5% |
