Shanghai Keray Biotech Co., Ltd.


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99.2% ( HPLC ) Anti Estrogen Steroids Hormone Raw Powder Estriol CAS 50-27-1 USP Standard

Tried a bulking cycle with your powder. High purity, smooth to go. And nice gains ... Will continue PCT with you and try a different stack next time.

—— Nick_c_Barker

Like your service guy, very patient and professional. Answer all kinds of questions and even chitchat with you. Good!!

—— Morgan_Roberts

A friend introduce this to me. Have tried other suppliers, but this is the best. High quality n professional consultation you can get, plus the price

—— Mustafa tango

99.2% ( HPLC ) Anti Estrogen Steroids Hormone Raw Powder Estriol CAS 50-27-1 USP Standard

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ภาพใหญ่ :  99.2% ( HPLC ) Anti Estrogen Steroids Hormone Raw Powder Estriol CAS 50-27-1 USP Standard ราคาถูกที่สุด

Place of Origin: China
ชื่อแบรนด์: Keray
ได้รับการรับรอง: SGS,ISO9001
Model Number: SHSC-02514
Minimum Order Quantity: 10gram
ราคา: Negotiable
รายละเอียดการบรรจุ: ถุงฟอยล์หรือดีบุกที่ปลอดภัยและรอบคอบ
Delivery Time: 24 hours upon receipt of payment
เงื่อนไขการชำระเงิน: โอนเงินผ่านธนาคาร BTC
Supply Ability: 3000Kg/Month
Appearence: White powder Purity: 99.2%(HPLC)
Cas: 50-27-1 Other Names: Estriol
MOQ: 10grams ราคา: Negotiate
Payment: ,,T/T Post company: UPS, FedEx, EMS, DHL, TNT and So on
Sample: Most of our products have free samples ready Delivery time: 5-7 days after your full payment,tracking number for your tracking
Skype: +86 13798562250 Related products: GRF 1-44,HGH,MGF,GHRP,Melanotan,CJC-1295,Toremifene Citrate
Storage Suggestion: Airtight dry shade Other service: We provide the service of melting powder to liquid

anti estrogen medication


natural estrogen inhibitors

High Purity Anti Estrogen Steroids Hormone Raw Powder Estriol CAS 50-27-1 USP Standard 




CAS No 50-27-1
Molecular Weight 288.3814
Molecular Formula C18H24O3
Appearance White crystalline powder
Specification USP
Grade Pharmaceutical Grade
Storage Shading, confined preservation.


Estriol can be a weak or strong estrogen depending on if it is given acutely or chronically when given to immature animals, but is an antagonist when given in combination with estradiol. Estriol may play a role in the development of breast cancer, but based on in vitro research, does appear to act as an antagonist to the G-protein coupled estrogen receptor. Though estriol is used as part of the primarily North American phenomenon of bioidentical hormone replacement therapy, it is not approved for use by the FDA or Health Canada.


Estradiol is produced especially within the follicles of female ovaries, but also in other endocrine (i.e., hormone-producing) and non-endocrine tissues (e.g., including fat, liver, adrenal, breast, and neural tissues). Estradiol is biosynthesized from progesterone (arrived at in two steps from cholesterol, via intermediate pregnenolone). One principle pathway then converts progesterone to its 17-hydroxy-derivative, and then to androstenedione via sequential cytochrome P450-catalyzed oxidations.Action of aromatase on this dione generates estrone, and action of a dehydrogenase on this gives the title compound, 17β-estradiol.



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99.2% ( HPLC ) Anti Estrogen Steroids Hormone Raw Powder Estriol CAS 50-27-1 USP Standard 0


Our outstanding advantages

We are a manufacturer engaging in steroid horomes,pharmaceutical raw material powders production.we are proficient in this field for 15 years,we can provide various steroid hormones based on costomers demand,and the pharmaceutical raw powders are all in good quality. The anticarcinogen,anaesthetic powders and antibiotic powders are popular in the world.

Good quality

All the products are in good quality and product purity is above 99%.Before products come into the market,we have strict inspecting,this step is also important for ourselves,regular customer need the same products,so the specification must be the same as befere or above.whats more, third party inspection is essential.The quality inspection report is avaliable for you.

Shenzhen Keray Biotech Co., Ltd.

ผู้ติดต่อ: wendy

โทร: +8613798562250