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Home > Products >  17β-estradiol Pharmaceutical Intermediate Estradiol Estrogen Steroids CAS 50-28-2

17β-estradiol Pharmaceutical Intermediate Estradiol Estrogen Steroids CAS 50-28-2 CAS NO.50-28-2

  • Min.Order: 10 Gram
  • Payment Terms: T/T,Western Union,MoneyGram
  • Product Details


  • 99% Estradiol
  • Pharmaceutical Raw Materials Manufacturer
  • API Manufacturer

Quick Details

  • ProName: 17β-estradiol Pharmaceutical Intermedi...
  • CasNo: 50-28-2
  • Molecular Formula: C18H24O2
  • Appearance: White Powder
  • Application: It Can Be Used As Pharmaceutical Inte...
  • DeliveryTime: 2-4 days after confirming your payment...
  • PackAge: 100g/ bag, 2 kg/ bag, 25kg/ carton or ...
  • Port: Wuhan
  • ProductionCapacity: 10000 Metric Ton/Month
  • Purity: 99%
  • Storage: Store in sealed containers at cool & d...
  • Transportation: By DHL, TNT, FedEx, HKEMS, UPS, Etc
  • LimitNum: 10 Gram



Hubei XinRunde Chemical Co., Ltd is a renowned pharmaceutical manufacturer. We can offer high quality products at competitive price in quick delivery with 100% custom pass guaranteed. Never stop striving to offer our best service is our philosophy. We have Flexible and Untraceable payment terms. As a leading manufacture, our products have been exported to Germany, Norway, Poland, Finland, Spain, UK, France, Russia, USA, Brazil, Mexico, Australia, Japan, Korea, Thailand, Indonesia, Uruguay and many other countries.


1. Quality.Every batch of steroid powders have tobetested by our QC(quality control) before they are allowed to sell.

2. Delivery We have stock, so we can delivery quickly at the very day when receive the payment. Within 24 hours after receiving the payment Lead time 4 or 7 days.

3. Discreet package Safelyand Professionally Disguised Package Guaranteed. For your safety and to insure delivery all products will be packed in a discreet way to prevent any suspicions, no steroids related name will appear on the parcels. high successful delivery rate.

4. Warm after-sale service Any of your question would be solved for the first as soon as possible.



Quick Details:


  • Estradiol 
  • Alias:17β-estradiol
  • Purity : 99%min
  • CAS Registry Number: 50-28-2
  • Einecs No: 200-023-8
  • Molecular formula: C18H24O2
  • Molecular weight:272.39
  • Grade : Pharmaceutical Grade
  • Storage: Shading, confined preservation
  • Usage : pharmaceutical material, etc 






1. This product is white or milky white odorless crystalline powder; In dioxane, dissolved in acetone,


slightly soluble in ethanol, insoluble in water.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.



2. 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.



3.  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.  Estradiol for functional uterine bleeding, primary amenorrhea, menopausal syndrome, prostate cancer.


Can promote and regulate the female sexual organs and sexual characteristics of the normal


development. Can promote the development of mammary duct proliferation, but in a larger dose, can


inhibit the release of anterior pituitary prolactin, while reducing milk secretion. Can also be used to return


milk. But may have nausea, vomiting and endometrial hyperplasia and bleeding. Liver and kidney


dysfunction with caution. Avoid for the breast, vulva and vaginal mucosa.




Specifications :



Product name Estradiol  
Appearance White crystalline powder  
Characteristics White or creamy white, crystalline powder conform
Melting point 173 ~ 179°C 178~ 179°C
Specific rotation +76°~+83° +78.5°
Water ≤3.5% pass
Assay 97 .0~ 103.0% 99.07%
Loss on drying ≤0.5% 0.21%
Related substances total impurities ≤1.0% Pass
  any individual impurity ≤0.5% Pass
Residual solvents ethanol ≤0.5% Pass







1. This medication is a female hormone (estrogen). It is used by women to help reduce symptoms of


menopause (such as hot flashes, vaginal dryness). These symptoms are caused by the body making less


estrogen. If you are using this medication to treat symptoms only in and around the vagina, products


applied directly inside the vagina should be considered before medications that are taken by mouth,


absorbed through the skin, or injected. This medication may also be used by women who are not able to


produce enough estrogen (for example, due to hypogonadism, primary ovarian failure).



2.  As a sex hormone, E2 has several different functions in women’s fertility. First, it helps to build and


protect the lining of the fallopian tubes, vagina, and uterus. This role is critical to get the embryo to attach


to the uterine wall. Many women who experience fertility problems have low levels of estradiol. Second, E2


maintains the oocytes, or egg cells, in the ovary. Healthy oocytes lead to healthy embryos. Only the best


oocyte is selected at each ovulation period to be released and possibly



3.  As a tissue builder, E2 seems to help protect women from heart disease by raising the levels of HDL,


the “good” cholesterol in the body. When hormone levels drop in postmenopausal women, their risk of


heart disease increases. E2 also helps protect bone density in both men and women by participating in a


messaging system that suppresses an overly rapid growth of immune cells in the bone. If more immune


cells are allowed to grow, they can block calcium absorption in the bone. This is why men with lower levels


of this hormone in their system have been found to be more susceptible to hip fractures.

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