Estradiol CAS.50-28-2

Estradiol, or more precisely, 17β-estradiol, is a human sex hormone and steroid, and the primary female sex hormone. It is named for and is important in the regulation of the estrous and menstrual female reproductive cycles.

Product Details

Estrogen Enhancement Steroids 99.9%

Powder Estradiol CAS 50-28-2 For women

Foshan Xinhang Biological Technology Co., Ltd.


Key words:S-23 ,Selective Androgen Receptor Modulator,S.A.R.M.S,

1.Product Introduction

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Estradiol, or more precisely, 17β-estradiol, is a human sex hormone and steroid, and the primary female sex hormone. It is named for and is important in the regulation of the estrous and menstrual female reproductive cycles. Estradiol is essential for the development and maintenance of female reproductive tissues[1] but it also has important effects in many other tissues including bone. While estrogen levels in men are lower compared to women, estrogens have essential functions in men as well.

In the female, estradiol acts as a hormone for tissue of the reproductive organs, supporting the lining of the vagina, the cervical glands, the endometrium, and the lining of the fallopian tubes. It enhances growth of the myometrium. Estradiol appears necessary to maintain oocytes in the ovary. During the menstrual cycle, estradiol produced by the growing follicle triggers, via a positive feedback system, the hypothalamic-pituitary events that lead to the luteinizing hormone surge, inducing ovulation. In the luteal phase, estradiol, in conjunction with progesterone, prepares the endometrium for implantation. During pregnancy, estradiol increases due to placental production. In baboons, blocking of estrogen production leads to pregnancy loss, suggesting estradiol has a role in the maintenance of pregnancy. Research is investigating the role of estrogens in the process of initiation of labor. Actions of estradiol are required before the exposure of progesterone in the luteal phase.


English Synonyms: 17beta-estradiol; dihydrofolliculin;Beta-Estradiol; B-estradiol;Estradiol;beta-estradiol-16;;estradiol
CAS: 50-28-2
EINECS Number: 200-023-8
Formula: C18H24O2
MW: 272.382

Molecular Structure:
Density: 1.17g / cm3
Melting point: 173 ºC
Boiling point: 445.9 ° C at 760 mmHg
Flash Point: 209.6 ° C
Vapor Pressure: 9.82E-09mmHg at 25 ° C
Appearance:White Crystalline Powder
Usage: Estradiol by estrogen in the treatment of skin absorption agent


17α-Estradiol is used in form of an ethanolic solution for topical application on the scalp. Similarly to other drugs against alopecia, topical or oral, it has to be applied continuously to prevent further hair loss.Regrowth of hair that was already lost is only possible to a limited extent. In general, advanced alopecia does not respond well to medical treatment, which is thought to be a consequence of the hair roots being lost.

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.

4.Prodection details


5,Product Qualification

Adaptation to symptom editing

1. the deficiency of estrogen is supplemented. It is commonly used in the treatment of female sex gland dysfunction, bilateral oophorectomy, atrophic vaginitis, vulvar drying, menopause syndrome such as hot tide, sweating, mental and neurological symptoms.

2. estrogen can be used to treat metastatic breast cancer, and 40% can achieve remission.

3. for the treatment of advanced prostate cancer, the symptoms improved significantly, the pain was relieved, and estrogen therapy was used after testicular extirpation.

4. prevent osteoporosis and prevent bone loss due to estrogen deficiency in early stage of menopause.

5. in the treatment of acne (acne), in men can be used in heavier cases, in women can choose estrogen and progestogen compound preparation.

Attentions editor

1. do not smear or paste in the breast or vulva

2. patients with dermatosis and skin allergy are not suitable for use.

3. should pay attention to the shedding of the patch. It is not suitable to soak in hot water bath for too long. Avoid rubbing the skin directly. The time of application is consistent with the time of the abscission piece, and the film is changed according to the original date.

4 avoid the liver and kidney function.

Pharmacological action

1 the endometrium hyperplasia;

2 the contraction of the smooth muscle of the uterus was enhanced.

3 promote mammary ductal hyperplasia, but larger doses can inhibit the release of prolactin from the anterior pituitary, thereby reducing the secretion of milk.

4 anti androgen effect;5 lower blood cholesterol and increase calcium in bone.

6.Delivery,shipping and serving

1. Mass stock, to make sure delivery promptly every day when the payment is done.
2. Having been engaged in this field for years, we have sophisticated and professional logistics department, which can guarantee safe and speedy delivery.
3. Well-trained and disciplined packing team which is professional enough to provide you a safe package. It also avoid a lot of emergency happen during the delivery so that high customs pass is guaranteed. Unique ways to ship 10grams to 25 kilograms powders(or 100ml to 30 Liter liquids) at one time to your destination.
4. Packing pictures and tacking code are provided within 24 hours as soon as receiving the payment. Updated tracking code will be provided every other day just for you can hold a palm of your package.
5. Perfect after-sale service: Any questions or problems happened after receiving the product.

Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q2. What about the lead time?
A: Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than

Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available

Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.

Q5. How to proceed an order for your products?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.

Q6. Is it OK to print my logo on package?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.

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