High Purity Estriol Raw Female Hormone Estrogen Powders 50-27-1
Estriol Quick Detail
Chemical Properties White Crystalline Powder
Usage 17b-estradiol metabolite, primary estrogen in urine
Usage A metabolite of Estradiol. An estrogenic metabolite
considerably less potent than the hormone Estradiol
Estriol is a metabolite of 17β-estradiol with much lower biological
activity. It is the primary estrogen found in the urine. Large
quantities of estriol and estrone are produced by the placenta
during pregnancy. These are also the primary estrogens produced by
adipose tissue in men and in post-menopausal women.
Though initial research in the 1970s suggested it could be used
therapeutically as an estrogen, subsequent research failed to
confirm this hypothesis. In pregnant women with multiple sclerosis,
estriol reduces the disease's symptoms noticeably, according to
researchers at UCLA's Geffen Medical School.
Estriol is a natural estrogen which is associated with pregnancy.
In pregnant women, estriol is produced in the fetus by the fetal
liver and in the placenta. Levels of estriol in the blood and urine
can be used to determine whether or not a woman is pregnant, and to
monitor the progress of the pregnancy. Abnormal estriol levels can
indicate that there is a problem with the developing fetus which
could bear closer monitoring or additional testing. The quad screen
routinely recommended to pregnant women includes a check on estriol
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
Q1: Are you a manufacturer?
A: Yes, We manufacture bulk products in our factory located in
Jiayu, Hubei, and produce small quantity and customer synthesis
products in our lab located in Wuhan.
Q2: Do you have stock?
A: We understand most customers prefer stock, so we'll try to keep
stock for most products. However, for some rare products, we won't
keep stock and it needs time to synthesize.
Q3: What certificates and documents do you offer?
A: Some technical paperwork is available, such as COA, HNMR, HPLC,
Q4: Why should I choose you?
A: Powerful technical support-come from our highly skilled &
fully experienced staff, working in chemical industry for over 5
years, in average.
Strict quality control-comes form our sophisticated management
Professional and warm sales team-since we believe we can only win
via our hard work in a competitive world
Quick response and excellent presale and after sale service-since
we believe our customers deserve all the best service
Q5: Can I get best price from you?
A: Of course. We don't chase excessive profits and always try tp
give best offer. If you are good at bargaining, you can also enjoy
fun of bargaining. Just don't make it too hard!
Q6: How should I pay?
A: We accept all kinds of payment ways. such as T/T, Western union,
Moneygram , Bitcoin .
Q7: Do you provide free sample?
A: Yes, we can provide free sample if we have in stock, just need
you to cover the delivery cost.
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