Sign In | Join Free | My insurersguide.com
insurersguide.com
Hongkong  Saichuang  Pharmaceutical  Technology  Co.,Ltd
Hongkong Saichuang Pharmaceutical Technology Co.,Ltd Choose us, best, professional steroid team waiting for u!
Home > Pharmaceutical Raw Materials >

17 Alpha-Oestradiol Pharmaceutical Raw Materials Hormone Power 57-91-0

Hongkong  Saichuang  Pharmaceutical  Technology  Co.,Ltd
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment

17 Alpha-Oestradiol Pharmaceutical Raw Materials Hormone Power 57-91-0

Certification : ISO9001
Place of Origin : CHINA
Payment Terms : T/T, L/C, Western Union
Brand Name : YC
Model Number : 58-20-8
Price : Negotiable
Supply Ability : 500kg per Month
Delivery Time : Within 48 hours upon receipt of payment
Packaging Details : bag
: : 57-91-0
belong : hormone
appearance : white
Standard : BP/USP Standard
Origin : China
Character : White Or Off-white Crystalline Powder
Contact Now

17 Alpha-Oestradiol Pharmaceutical Raw Materials Hormone Power 57-91-0


17alpha-Oestradiol
Synonyms: epiestradial;
: 57-91-0
EINECS: 200-023-8
Assay: 98% min.
Standard: USP34
Packing: foil bag or tin.
Delivery: Express courier.
MF: C18H24O2
MW: 272.38
Character: White Solid. Mp 176-180℃. solubility ethanol: 50 mg/mL, clear, colorless
Usage: Estradiol (known as α-Estradiol or 17 α-Estradiol) is a biologically active estrogen in human breast cancer cells in tissue culture. 17-Εstradiol and its selective receptor, ER-X, are not part of a classical hormone/receptor endocrine system but of a system with important autocrine/paracrine functions in the developing and adult brain. 17-Estradiol may have enormous implications for hormone replacement strategies at the menopause and in the treatment of such neurodegenerative disorders as Alzheimer’s disease and ischemic stroke.
Biological Activity Endogenous estrogen receptor ligand



Applications:
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 enhances 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.

Male reproduction
The effect of estradiol (and estrogens) 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.It functions (in vitro) to prevent apoptosis of male sperm cells.
Several studies have noted sperm counts have been declining in many parts of the world, and estrogen exposure in the environment has been postulated to be the cause.Suppression of estradiol production in a subpopulation of subfertile men may improve the semen analysis.
Males with sex chromosome genetic conditions, such as Klinefelters syndrome, will have a higher level of estradiol.

Bone
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.

Liver
Estradiol has complex effects on the liver. It can lead to cholestasis. It affects the production of multiple proteins, including lipoproteins, binding proteins, and proteins responsible for blood clotting.

Brain
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.
Estrogen is considered to play a significant role in women’s mental health, with links suggested between the hormone level, mood and well-being. Sudden drops or fluctuations in, or long periods of sustained low levels of estrogen may be correlated with significant mood-lowering. Clinical recovery from depression postpartum, perimenopause, and postmenopause was shown to be effective after levels of estrogen were stabilized and/or restored.

Recently, the volumes of sexually dimorphic brain structures in phenotypical males were found to change and approximate typical female brain structures when exposed to estradiol over a period of months,suggesting estradiol has a significant part to play in sex differentiation of the brain, both prenatally and throughout life.

There is also evidence the programming of adult male sexual behavior in many vertebrates is largely dependent on estradiol produced during prenatal life and early infancy.It is not yet known whether this process plays a significant role in human sexual behavior, although evidence from other mammals tends to indicate a connection.

Specifications:

Product nameEstradiol
AppearanceWhite crystalline powder
CharacteristicsWhite or creamy white, crystalline powderconform
Melting point173 ~ 179°C178~ 179°C
Specific rotation﹢76°~﹢83°﹢78.5°
Water≤3.5%pass
Assay97 .0~ 103.0%99.07%
Loss on drying≤0.5%0.21%
Related substancestotal impurities ≤1.0%Pass
any individual impurity ≤0.5%Pass
Residual solventsethanol ≤0.5%Pass


Competitive advantage:

Packing: Professional packing with professional materials, and We'll give clients several Packing way to choose after you contact me through my email.

Quality: Our factory strickly control the production steroids,each batch of steriods can't be
allowed to sell before the batch have been checked by our QC department.Quality is satisfied enough.

Price: Best prices you're sure to be satisfied, the more you buy, the more competitive prices you get.

Delivery: We can pack your steroids products within 24 hours after your payment.






















































Product Tags:

pharmaceutical raw chemical

      

api active pharmaceutical ingredient

      
China Customized Inflatable Bumper Ball Game Bubble Adult Grass CE supplier

17 Alpha-Oestradiol Pharmaceutical Raw Materials Hormone Power 57-91-0 Images

Inquiry Cart 0
Send your message to this supplier
 
From:
To: Hongkong  Saichuang  Pharmaceutical  Technology  Co.,Ltd
Subject:
Message:
Characters Remaining: (0/3000)