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estradiol-17-beta （17β estradiol）
CAS NO.: 50-28-2
Molecular formula： C18H24O2
Molecular weight：272.39
Chemical Name：Estra-1,3,5(10)-triene-3,17b-diol
Packing：0.5kg/ foil bag, 2bags/carton;
Structural formula： 
Key word:
estradiol 17 beta;17beta estradiol;17 estradiol;β estradiol;17β estradiol;
What is Estradiol?
Estradiol is a key natural estrogen secreted by ovarian mature follicles, which can promote and regulate the normal development of female organs and secondary sexual characteristics.
Benefits of Estradiol：
Estradiol is a key natural estrogen secreted by ovarian mature follicles, which can promote and regulate the normal development of female organs and secondary sexual characteristics.
Estradiol has two types called α, β;α-type have notable physiological effects.
Estradiol can reduce menopausal symptoms, such as sweating, hot flashes, vaginal dryness, mood changes, sleep difficulties and urination problems.
Side effect of Estradiol：
1.Main side effects of Estradiol:
abdominal cramps or flatulence; poor appetite; nausea; ankle and foot edema;breast pain or (and) swelling; weight gain or decrease. May have nausea, vomiting, breast swelling, local pain, endometrial hyperplasia.
2.Other side effects of Estradiol:
Dizziness; thoracic, epigastric (stomach), groin or leg pain, especially the gastrocnemius muscle, especially in the gastrocnemius muscle; abdominal pain, dizziness, Pain, arm or leg weakness or numbness; shortness of breath, sudden, unexplained;
Note:Pregnant women is prohibited to take.
Usage: Estradiol tablet/pill; Estradiol gel; Estradiol injection; Estradiol cream; Estradiol plaster; Estradiol serum; 
Specification/technical data sheet
| Item | Result |
Characteristic |
white or Off-white crystalline powder |
Specific rotation |
between +76° and +83° |
Melting range |
between 173° and 179° |
Water |
not more than 3.5% |
Assay |
97-103% on the anhydrous substance |
Pharmacopeia |
USP37;EP8.0;BP2012; |
Particle size |
90%<10um,100% pass 20um;micro powder can be customized. |
How to test assay of Estradiol?
Take the estradiol sample, accurately weighed, then added anhydrous ethanol,made about 70μg per 1ml of the solution, according to spectrophotometry, measured at the wavelength of 280nm absorbance, according to C18H24O2 absorption coefficient (E1% 1cm) is 77 calculation.
Storage of Estradiol:
Preserve in tight,light-resistant containers,store at 25℃,excursions permitted between 15-30℃. Keep out of reach of children.
Shelf life of Estradiol:
24 months when properly stored in original packing
Why choose us?
--Advanced production equipments and strict production management according to GMP regulation are the solid base of estradiol uniformity.
--The strong R&D team is supporting us to keep estradiol competitiveness.
--The lab with complete facilities and experienced analysts is the guarantee of high quality of estradiol.
--The efficient system of logistics and warehouse management are the guarantee of delivering estradiol on time,with the perfect conditions.
--The efficient system of logistics and warehouse management are the guarantee of delivering estradiol on time,with the perfect conditions. 
FAQ:
Who are API&HERB GROUP?
API&HERB GROUP is engaged in human health all over the world.The API Biopharm and HERB Biopharm are mainly held by API&HERB group.API biopharm is a high-new-tech enterprises and national sterioid hormone manufacturer.
Which products your company do?
We are specialist in botanical extract and hormones.
How to order this product?
Pls email to:nikita@api-herb.com,you are welcome in 24 hours.
How I pay to you?
We accept T/T;L/C;D/P;west union;paybal;
What's the MOQ?
Sample will be free accordingly,with freight collect.MOQ is 0.5kg .
AH BIOPHARM has advanced technology in producing estradiol-17-beta （17β estradiol）. And we're known as a professional manufacturer of various hormone and herbal extract. Please rest assured to buy the competitive price products for sale from us.