17α-estradiol CAS 57-91-0

Hormone research and synthesis:

Serves as a stereoisomer of β-estradiol (the predominant biologically active estrogen) and is used in biochemical studies to investigate estrogen receptor binding and hormonal mechanisms.

Acts as an intermediate in the synthesis of other estrogenic compounds, including conjugated estrogens or synthetic steroids (e.g., ethinylestradiol for contraceptives).

Pharmacological studies:

Utilized in preclinical research to evaluate the effects of estrogen isomerism on physiological processes, such as reproductive tissue development, bone metabolism, or endocrine regulation.

Veterinary or specialized applications (limited clinical use in humans):

In some contexts, may be used in veterinary medicine for hormonal regulation in animals, though β-estradiol is more commonly employed in human therapy.

Temperature: Store at room temperature (20–25°C, 68–77°F), with short-term storage acceptable between 15–30°C (59–86°F).

Light and moisture: Keep in a tightly sealed, light-resistant container (e.g., amber glass vial or opaque package) in a dry place, away from direct sunlight, humidity, and heat sources.

Handling precautions:

Avoid exposure to air for extended periods to minimize oxidation risks.

For laboratory or industrial use, store in a controlled environment away from incompatible chemicals (e.g., strong oxidizing agents).

Safety: Keep out of reach of children and pets; follow proper handling protocols for chemical compounds.

Shelf life: Typically 2–3 years when stored under recommended conditions (always check the manufacturer's label for specific expiration dates).

Degradation factors:

Sensitive to light and heat, which can induce isomerization (e.g., conversion to β-estradiol) or oxidation, altering its biological activity.

Moisture may promote microbial growth in formulated products or chemical decomposition in pure powder form.

Quality checks:

Discard if the substance shows signs of discoloration (e.g., yellowing or darkening), clumping, or an unusual odor.

Ensure the container remains sealed to prevent contamination or degradation from environmental exposure.

Company Profile

ZHONGDA (ZHENGZHOU) INTERNATIONAL EXP.&IMP.CO.,LTD. Is a subsidiary of HENAN KANGYUAN FLAVOR GROUP CO.,LTD.

 

ZhongDa operates monomeric frag rances, synthetic fragrances, chemical raw materials, pharmaceutical and dye intermediates,agricultural and sideline products, metal materials and food flav ors etc..
It is also responsible for the procurement ( of various raw materials, instruments and equipments which are required for the production, engineering,re research and development of subsidiaries of Kangyuan group company. Relying on strong financial support, professional sales network, and high-quality product services, ZhongDa has become the partner of dom nestic and foreign manufacturers and professional customers, and it is a foreign trade-oriented enterpl rise with considerable strength in the spice industry.

ZHONGDA (ZHENGZHOU) INTERNATIONAL EXP.&IMP.CO.,LTD. was established in 2007, with a group of professional business trade, product research and development team.

 

It has rich experience in foreign trade, good domestic and international business reputation, and extensive sales channel advantages. Through the joint efforts, ZhongDa has achieved outstanding results. Our products sell well all over the country and are exp( orted to Southeast Asia, Middle East, America, Europe and other countries and regions. And enjoy high re eputation from domestic and foreign customers.
ZhongDa adheres to the tenet of"Quality first, service firs st". We sincerely hope to establish good coope rative relationship with more companies and strive to mer et the different requirements of customers. We hope that ZhongDa products will help you succeed in your pr oducts. We hope that our products will develop together in big market and create brilliant future. We sincer rely welcome customers to visit, guide and call us!

Advantages

 

1). More than 30 years of production experience and more than 10 years of export sales experience.
2). Our products have Kosher, ISO and Halal certificate.
3). Small batch shipment and sub-packaging is available.
4). Provide COA, MSDS, Health Certificate and Origin Certificate.
5). Quality first, service best.

 

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