16-Epiestriol
16-Epiestriol (CAS 547-81-9), with the molecular formula C18H24O3 and a molecular weight of 288.38 g/mol, is a stereoisomer of estriol. This compound is recognised for its role in biological systems, particularly within the categories of bioactive small molecules and steroid hormones. It finds utility in biochemical research, cell biology studies, and investigations into cell signaling pathways. Its specific stereochemical configuration influences its biological interactions and research applications.
- IUPAC
- 1,3,5(10)-Estratriene-3,16β,17β-triol,16β-Hydroxy-17β-estradiol,3,16β,17β-Trihydroxy-1,3,5(10)-estratriene

Biochemical Research
16-Epiestriol serves as a valuable tool in biochemical research, enabling scientists to study hormone-receptor interactions and metabolic pathways. Its distinct structure aids in understanding stereospecific biological processes.
Cell Biology Studies
As a bioactive small molecule, 16-Epiestriol is utilised in cell biology to investigate cellular responses and signaling cascades. Researchers employ it to explore the effects of steroid hormones on cellular functions.
Endocrinology Research
This compound is relevant in endocrinology research, offering insights into the physiological roles and mechanisms of action of estrogenic compounds. It can be used to probe specific endocrine pathways.
| Molecular weight | 288.38 |
|---|---|
| Empirical formula | C18H24O3 |
| Assay | ≥93% (HPLC) |
| 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.
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 16-Epiestriol primarily used for?
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16-Epiestriol is primarily used in biochemical research, cell biology studies, and endocrinology research to investigate hormone-receptor interactions, cellular responses, and the physiological roles of estrogenic compounds.
What is the CAS number and chemical formula for 16-Epiestriol?
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The CAS number for 16-Epiestriol is 547-81-9, and its chemical formula is C18H24O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 16-Epiestriol with an assay of ≥93% (HPLC). TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling considerations for 16-Epiestriol?
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Handling 16-Epiestriol requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The product is classified under WGK Germany 3, indicating a high hazard to water.
How is 16-Epiestriol packed, shipped, and exported?
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Tech Serve Solutions specialises in the global supply and export of fine chemicals like 16-Epiestriol, adhering to all necessary shipping and handling regulations.
How can I request a sample or quote for 16-Epiestriol?
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To request a sample or obtain a quote for 16-Epiestriol, please contact our sales team through the TSS website or your dedicated account manager.
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