| Message: | Positive T4 / L-Thyroxine Legal Oral Steroids CAS 51-48-9 Levothyroxine Sodium Powders for Enhance Immune System
Bulking Cycle Positive T4 / L-Thyroxine Legal Oral Steroids 51-48-9 Levothyroxine Sodium Powders
Quick Detail:
L-Thyroxine (T4/Levothyroxine Sodium)
L-Thyroxine; Levothyroxine Sodium;T4
CAS:51-48-9
Assay:99%
Dosages: 200-400 mcg/day
Molecular Weight:776.87
Molecular Formula:C15H11I4NO4
Appearance:White crystals Powder
Description:
L-Thyroxine; Levothyroxine Sodium;T4
CAS:51-48-9
Assay:99%
Molecular Weight:776.87
Molecular Formula:C15H11I4NO4
Item Specification Result
Appearance An odorless, almost white or buff colored powder pass
Solubility 1,Very slightly soluble in water pass
2,slightly soluble in alcohol pass
3,practically insoluble in most other organic solvents pass
4,disolves in diluted aqueous sodium hydroxide solutions Pass
Identification a) Heat about 50 mg with a few drops of sulfuric acid in a porcelain crucible: violet vapors of iodine are evolved. pass
b)The retention time of the major peak is confirm to the RS pass
Loss on Drying Not more than 4.0% 0.46%
[a]20/D C=1 in 1M HCl/EtOH 1:4 +18 ~ +22o ＋20.9o
Assay(HPLC) Not less than 95.0% 99.18%
Levothyroxine sodium Not more than 5.0% 0.68%
Conclusion: Up to the Standard for Export
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