भुगतान & नौवहन नियमों:
|Product Name:||Estradiol||CAS No.:||50-28-2|
|Purity:||more than 99%||Alias:||17beta-estradiol, dihydrofolliculin, Beta-Estradiol, B-estradiol, Estradiol, beta-estradiol-16estradiol|
|Appearence:||White crystalline powder||Standard:||USP|
|Export Market:||Global||Packing Methods:||designed disguised packing ways, 100% pass custom guarantee|
|Delivery time:||3-7 working days||Delivery Method:||ship by express, like EMS,DHL, Fedex, TNT, UPS, Aramex etc|
|Shelf life:||2years||Payment Methods:||T/T, Western Union, MoneyGram, Bitcoin|
Prohormone Estrogen Steroids Powder Estradiol For Female Sexual Development
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Estradiol Quick Details
|Alias||17beta-estradiol; dihydrofolliculin;Beta-Estradiol; B-estradiol;Estradiol;beta-estradiol-16;;estradiol|
|Appearance||White crystalline powder.|
|Shelf life||2 years|
|Stradge||Keep in a ventilated, dry and cool place|
|Packing Methods||designed disguised packing ways, 100% pass custom guarantee|
|Delivery time||within 18 hours after payment confirmed|
|Payment||T/T, Western Union,Money Gram , Bitcoin|
|Usage||Estradiol by estrogen in the treatment of skin absorption agent|
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. 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.
1. Sexual development
The development of secondary sex characteristics in women is driven by estrogens, to be specific, estradiol. These changes are initiated at the time of puberty, most are enhanced during the reproductive years, and become less pronounced with declining estradiol support after the menopause. Thus, estradiol produces breast development, and is responsible for changes in the body shape, affecting bones, joints, and fat deposition. Fat structure and skin composition are modified by estradiol.
2. Female reproduction
In the female, estradiol acts as a growth 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. Estradiol 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.
3. Male reproduction
The effect of estradiol (and estrogens in general) upon male reproduction is complex. Estradiol is produced by action of aromatase mainly in the Leydig cells of the mammalian testis, but also by some germ cells and the Sertoli cells of immature mammals.
Estradiol functions (in vitro) to prevent apoptosis of male sperm cells. While some studies in the early 1990s claimed a connection between globally declining sperm counts and estrogen exposure in the environment, later studies found no such connection, nor evidence of a general decline in sperm counts. Suppression of estradiol production in a subpopulation of subfertile men may improve the semen analysis.
Males with certain sex chromosome genetic conditions, such as Klinefelter's syndrome, will have a higher level of estradiol.
Estradiol has a profound effect on bone. Individuals without it (or other estrogens) will become tall and eunuchoid, as epiphyseal closure is delayed or may not take place. Bone structure is affected also, resulting in early osteopenia and osteoporosis.
Also, women past menopause experience an accelerated loss of bone mass due to a relative estrogen deficiency.
Estrogens can be produced in the brain from steroid precursors. As antioxidants, they have been found to have neuroprotective function.
The positive and negative feedback loops of the menstrual cycle involve ovarian estradiol as the link to the hypothalamic-pituitary system to regulate gonadotropins.
6. Gynecological cancers
Estradiol has been tied to the development and progression of cancers such as breast cancer, ovarian cancer and endometrial cancer.
Estradiol has complex effects on the liver. In high amounts, it can lead to cholestasis. Estradiol affects the production of multiple proteins, including lipoproteins, binding proteins, and proteins responsible for blood clotting.
Estrogen affects certain blood vessels. Improvement in arterial blood flow has been demonstrated in coronary arteries.
Several benign gynecologic conditions are dependent on estrogen, such as endometriosis, leiomyomata uteri, and uterine bleeding.
|Appearance||White crystalline powder|
|Characteristics||White or creamy white, crystalline powder||conform|
|Melting point||173 ~ 179°C||178~ 179°C|
|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|
Related Estrogen Steroid Powder
Estradiol benzoate CAS No.50-50-0
Estradiol CAS No.50-28-2
Estrone CAS No.53-16-7
Estradiol Enanthate CAS No.4956-37-0
Estradiol Cypionate CAS No.313-06-4
Diethylstilbestrol CAS NO.56-53-1,6898-97-1
Nilestriol CAS No.39791-20-3
T-ibolone(Livial;Liviella) CAS No.5630-53-5
Estradiol Valerate CAS No.979-32-8
You may want to know First :
1. Available: steroid powder, semi-finished oil, sarms, peptides pain killers etc. And all kinds of machines for steroids processing.
2. Parcel : Designed Discreet packing according to different countries and quantity.
3. Pass Custom Rate: more than 99%.
4. Reship Policy: we do reship once free (no country limitation) if the parcel be seized. Pls contatc whatsapp +8618872220826.
5. Delivery Methods: EMS, DHL, FedEx, UPS, TNT, Aramex, China/Hongkong/ Singapore/Sweden/Holland Post Mail. All with tracking code. Usual delivery time is 4-7 workdays.
6.Delivery Time: US :3-5 days, UK: 4-7 days, Canada: 3-7 days, Europe: 6-10 days
Packaging & Service:
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.
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