Description
What is T4 Levothyroxine?
Levothyroxine (T4) is the primary secretory product of the thyroid gland — a prohormone requiring peripheral conversion to T3 (by deiodinase DIO1/DIO2) for full activity. Research: prohormone conversion biology, DIO1/DIO2 enzyme research, hypothyroid replacement models, T4/T3 axis feedback. CAS 51-48-9.






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