T4 100G Raw Powder | Thyroxine
🌏 China Warehouse
QSC T4 (Thyroxine / Levothyroxine) (Thyroid Hormone / TR Agonist) — ≥99% HPLC purity, MS confirmed, Janoshik COA. 100G bulk. Research use only.
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
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What is T4 (Thyroxine / Levothyroxine)?
T4 (Thyroxine/Levothyroxine) is the primary secretory product of the thyroid gland — a prohormone converted to active T3 (triiodothyronine) by deiodinase enzymes. Acts on thyroid receptors (TRα/TRβ) to regulate metabolism, thermogenesis, cardiac function, and gene expression. Research tool for thyroid hormone pharmacology, metabolic rate, and HPT axis studies. Research use only.
Research Applications
T4-to-T3 Conversion
Deiodinase enzyme activity, tissue-specific T3 production, substrate kinetics
Thyroid Receptor Pharmacology
TRα vs TRβ selectivity, nuclear receptor binding, TRE-mediated transcription
Metabolic Rate Research
Basal metabolic rate upregulation, thermogenesis, mitochondrial uncoupling interaction
HPT Axis Research
Hypothalamic-pituitary-thyroid feedback — TSH suppression, TRH regulation
Cardiac Thyroid Research
TRα-mediated cardiac chronotropy, myosin heavy chain isoform switching
Quick Specs
| Form | Raw bulk powder (crystalline/amorphous) |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 51-48-9 |
| Molecular Formula | C₁₅H₁₁I₄NO₄, MW 776.9 |
| Identity | MS molecular weight confirmed — every batch |
| Compound Type | Thyroid Hormone / TR Agonist |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house synthesis — Qingdao, China |
| Storage | Room temperature sealed | cool, dry storage |
| Shelf Life | 24 months (unopened) |
Certificate of Analysis (COA)
Frequently Asked Questions
Frequently asked questions
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Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.
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