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Guangzhou Quanao Chemical Co., Ltd.

Estriol, Metabolite, Estrogenic manufacturer / supplier in China, offering High Quality Estriol CAS: 50-27-1 for Female Sex Hormone, Best Quality 1-Phenethyl-4-Piperidone Npp Powder on Factory Supply, Top Quality Tianeptine Sulfate Powder by Factory Supply Treat Depression and so on.

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Supplier Homepage Product Human Growth Peptides High Quality Estriol CAS: 50-27-1 for Female Sex Hormone

High Quality Estriol CAS: 50-27-1 for Female Sex Hormone

FOB Price: US $1 / gram
Min. Order: 10 gram
Min. Order FOB Price
10 gram US $1/ gram
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Port: Hong Kong, Hong Kong
Production Capacity: 10000kg/Month
Payment Terms: T/T, Western Union, Money Gram

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Basic Info
  • Model NO.: 50-27-1
  • Customized: Non-Customized
  • Suitable for: Adult
  • Purity: >99%
  • CAS: 50-27-1
  • MW: 288.38
  • Transport Package: as Your Request
  • Origin: China
  • Powder: Yes
  • Certification: GMP
  • State: Solid
  • Product Name: Estriol
  • Mf: C18h24o3
  • Trademark: yc
  • Specification: foil bag
  • HS Code: 300120002
Product Description
Estriol
Synonyms: TRIDESTRIN; (16-alpha,17-beta)-estra-1,3,5(10)-triene-3,16,17-triol
CAS: 50-27-1
MF: C18H24O3
MW: 288.38
Packing: Foil bag
Appearance: White Crystalline Powder
Standards: USP27
Usage: A metabolite of Estradiol. An estrogenic metabolite considerably less potent than the hormone Estradiol


 
COA 
 


TEST ITEMS

               SPECIFICATION

RESULTS

Description

:    White or Almost White Crystalline Powder

white powder

Identification

:    A.B.

Positive

Assay

:  97.0~102.0%

99.3%

Specific Rotation

:    +101°~+105°

+102.6°

Loss On Drying

:    1.0%max

0.27%

Melting Point

:    153~157°C

153.0~155.0°C

Organic Volatile Impurities

:    meets the requirement.

Conforms

Related Substances

:    meets the requirement.

Conforms

Residual Solvents

:    meets the requirement.

Conforms

Particle Size

:    100% ≤ 20 microns

Conforms
Conclusion
The specification conform with USP30 standard


 
Description:

Estriol can be measured in maternal blood or urine and can be used as a marker of fetal health and wellbeing. DHEA-S is produced by the adrenal cortex of the fetus. This is converted to estriol by the placenta.
If levels of unconjugated estriol (uE3 or free estriol) are abnormally low in a pregnant woman, this may indicate chromosomal or congenital anomalies like Down syndrome orEdward's syndrome. It is included as part of the triple test & quadruple test for antenatal screening for fetal anomalies.
Because many pathological conditions in a pregnant woman can cause deviations in estriol levels, these screenings are often seen as less definitive of fetal-placental health than a nonstress test. Conditions which can create false positives and false negatives in estriol testing for fetal distress include preeclampsia, anemia, and impaired kidney function.



Competitive Advantage:
 
Professional Packing
Professional packing with professional materials, and we will give clients several packing way to choose after you contact me through my email
 
Quality Assurance
Double check for quality of every batch before delivering to customer;
For appearance, we will take pictures of products in advance. We offer the photos to you for your approval. Especially for lumpy solid, we will check the appearance after melting to avoid visible contaminations.
For key parameters, we send samples to qualified third party against manufacturer's COA or upon customer's test method. If there is discrepancy, we will inform you immediately.
 
Competitive Price
Our extensive relationship with manufacturers in China, allow us to bring you the highest quality chemicals, ingredients, and additives at a superior price.
The more you buy the more competitive prices you will get.
 
In time Delivery:
We promise to deliver each batch of products in time, and with the target that deliver satisfaction rate arrive to 100%.
 
Service with heart
We Truly Chemical offer specialized logistic service including export declaration, customs clearance and every detail during shipment. This makes us able to offer you one-stop service from the order to the products transported to your hand. Truly Chemical keeps your order in our heart.


 


 
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