Levothyroxine EP Impurity F
Impurity reference standard · Levothyroxine
- CAS number
- 911661-90-0
- Molecular formula
- C21H13I6NO5
- Molecular weight
- 1120.76
- Purity
- 95%+
- Appearance
- White Solid
- Storage
- 2℃ ~ 8℃
About Levothyroxine EP Impurity F
Levothyroxine EP Impurity F is a specified impurity of Levothyroxine. It is registered under CAS number 911661-90-0.
The compound is characterised by its molecular formula C21H13I6NO5 and a molecular weight of 1120.76, with the two-dimensional structure shown above. Because it shares the Levothyroxine scaffold, it is typically used to track process-related and degradation impurities of Levothyroxine during method development, forced degradation and stability studies.
Each pack ships with a certificate of analysis reporting purity of 95%+ together with the supporting analytical data — HNMR, MS and HPLC or GC traces — so the material can be released straight into your own QC workflow. Recommended storage: 2℃ ~ 8℃.
Available from stock in milligram to gram quantities; larger or custom synthesis requirements are quoted on request.
Other Levothyroxine impurities
The same parent compound, neighbouring impurity numbers.
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