L-Thyroxine sodium salt pentahydrate
L-Thyroxine sodium salt pentahydrate (CAS: 6106-07-6) is a synthetic form of the thyroid hormone thyroxine. With a molecular weight of 888.93, this compound is supplied as a white to off-white powder. It is suitable for cell culture applications, playing a role in cell signalling and biological research. Its specific applications include its use in studies involving cell biology and as a research tool in endocrinology.
- IUPAC
- 3-[4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-L-alanine sodium salt,Sodium levothyroxine,T4
- Synonyms
- 3-[4-(4-Hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl]-L-alanine sodium saltSodium levothyroxineT4

Cell Biology Research
L-Thyroxine sodium salt pentahydrate is used in cell culture to study cellular processes and responses. Its suitability for cell culture makes it a valuable reagent for researchers investigating cell growth and function.
Endocrine System Studies
This compound serves as a synthetic thyroid hormone analogue. It is employed in research settings to investigate the mechanisms and regulation of the endocrine system, particularly thyroid hormone action.
Biochemical Assays
The high purity of L-Thyroxine sodium salt pentahydrate, assaying at ≥98%, makes it suitable for use in various biochemical assays. Researchers utilise it to probe specific biological pathways and molecular interactions.
| Molecular weight | 888.93 |
|---|---|
| Linear formula | HOC6H2I2OC6H2I2CH2CH(NH2)COONa · 5H2O |
| Assay | ≥98% |
| Form | powder |
| Solubility | cell culture medium: soluble0.1 mg/mLH2O: soluble |
| Storage temperature | −20°C |
| Suitability | suitable for cell culture |
| Melting point | 207-210 (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | mouse ... Cnr2(12802)rat ... Cnr1(25248) |
|---|---|
| Sterility | γ-irradiated |
| Potency | 5-50 ng/mL |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is L-Thyroxine sodium salt pentahydrate used for?
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L-Thyroxine sodium salt pentahydrate is used in research for cell biology, cell signalling, and studies of the endocrine system. It is suitable for cell culture applications.
What are the CAS number and formula for L-Thyroxine sodium salt pentahydrate?
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The CAS number is 6106-07-6. The linear formula is HOC<sub>6</sub>H<sub>2</sub>I<sub>2</sub>OC<sub>6</sub>H<sub>2</sub>I<sub>2</sub>CH<sub>2</sub>CH(NH<sub>2</sub>)COONa · 5H<sub>2</sub>O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies L-Thyroxine sodium salt pentahydrate with an assay of ≥98%. TSS does not represent this product as USP, BP, or EP grade.
How should L-Thyroxine sodium salt pentahydrate be handled safely?
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When handling L-Thyroxine sodium salt pentahydrate, it is recommended to wear eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if necessary, as indicated by the WGK Germany rating of 3.
How is L-Thyroxine sodium salt pentahydrate shipped and exported?
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As a global supplier and exporter of fine chemicals, Tech Serve Solutions handles the packing and shipping of L-Thyroxine sodium salt pentahydrate with care, adhering to all relevant regulations for international export.
How can I request a sample or quote for L-Thyroxine sodium salt pentahydrate?
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To request a sample or quote for L-Thyroxine sodium salt pentahydrate, please contact the Tech Serve Solutions sales team through our official channels.
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