Payment & Shipping Terms:
|Model NO:||57-91-0||Molecular Formula::||C18h24o2|
|Molecular Weight:||272.38||Specification:||Enterprse Standard|
|Purity:||>99%||Melting Point:||176-180 °c|
57-91-0 Raw Steroid Powders Sex Hormone Human Breast Cancer 17 Alpha-Oestradiol
Assay: 98% min.
Packing: foil bag or tin.
Product Categories: Steroids;Intermediates & Fine Chemicals;Pharmaceuticals
Mol File: 57-91-0.mol
Synonyms:17a-Estradiol (8CI); 1, 3, 5-Estratriene-3, 17a-diol; 13b-Methyl-1, 3, 5(10)-gonatriene-3, 17a-diol; 17-Epiestradiol; 17a-Oestradiol
Estradiol is a sex hormone that is present in both males and females, and is the most important form of estrogen in humans. In women, it plays a key role in the development and functioning of the reproductive system, as well as in the growth of certain bones. It also governs the distribution of body fat in women and is the main hormone responsible for the fact that women are shorter than men, on average. Both the ovaries and the adrenal glands produce it.
The menstrual cycle in women involves predictable variations in the levels of several hormones, with estradiol being one of them. It is involved in the ovulation process and prepares the inner lining of the uterus for implantation, should the egg be fertilized. Certain tests done on baboons and other primates have indicated that his hormone also plays a continual role in maintaining a pregnancy, helping it to last for the full gestation period.
As a sex hormone, it also triggers many of the developments of the reproductive system that begin in puberty. It is present throughout the reproductive years, and declines during and after menopause. This decline is precisely what causes many of the symptoms of menopause, such as hot flashes and night sweats, vaginal dryness, and the loss of bone mass that may lead to osteoporosis.
|Melting Point||176-180 °c|
Advantage of Our Company
1, Professional medical products manufacture for more than 15 years
2, High quality with competitive price
3, Independent Design and Outstanding Sales Team
4, Large Supply Ability
5, Excellent after-sales service
1. Any Inquiries will be replied within 24 hours
2. Hight quality, fashion designs reasonable & competitive price.Fast lead time.
3. Payment:You can pay for the order via:T/T, Western Union, MoneyGram
4. After Sale Service:
1). All products will have been strictly Quality Checked in house before pecking.
2). All products will be well packed before shipping.
3) Parcel can be sent out in 24 hours after payment.Tracking number available
4) Secure and discreet shipment.Various transportation methods for your choice.
5) Customs pass rate ≥99%
6) We have our own agent/remailer/distributor who can help us ship our products very fast and safe, and we have stock in there for transferring.
We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China Air PostYou also can choose your own shipping forwarder.
Sample Policy:You need pay for sample first if you want to check it and the money will be refunded when mass order confirmed.
Payment Way:T/T,Western Union, Money Gram
Delivery Date:Within 10 working days after deposit paid
Shipping Way:By Sea or By Air
After Service:When you receive the goods, please check the product and its quantity in time, Once Problems arised , pls contact us and we will help you solve the problem.