Factory Supply High Quality Estradiol 50-28-2
  • Item No.estradiol
    MOQ1 Kilogram / Kilograms
    description
    QQ20190416134021
     
    Specifciation
     
    1.Competitive price
    2.Fast Delivery Within 2 days
    3.SGS , BV, GMP,ISO approve
    4.Professional factory
     
    Product Description

     

    Factory Supply High Quality estradiol 50-28-2

    Introduction of estradiol
     
    Estradiol (E2 or 17β-estradiol, also oestradiol) is a sex hormone. Estradiol is abbreviated E2 as it has twohydroxyl groups in its molecular structure. Estrone has one (E1) and estriol has three (E3). Estradiol is about 10 times as potent as estrone and about 80 times as potent as estriol in its estrogenic effect. Except during the early follicular phase of the menstrual cycle, its serum levels are somewhat higher than that of estrone during the reproductive years of the human female. Thus it is the predominant estrogen during reproductive years both in terms of absolute serum levels as well as in terms of estrogenic activity. During menopause, estrone is the predominant circulating estrogen and during pregnancy estriol is the predominant circulatingestrogen in terms of serum levels.  The serum levels of estradiol in males (14 - 55 pg/mL) are roughly comparable to those of postmenopausal women (< 35 pg/mL). Estradiol in vivo is interconvertible with estrone; estradiol to estrone conversion being favored. Estradiol has not only a critical impact on reproductive and sexual functioning, but also affects other organs, including the bones.


     Funtion of estradiol
     
    1.Endometrial hyperplasia
    2.To enhance uterine contraction of the smooth muscle
    3.Breast duct hyperplasia to development
    4.Androgen depriation role
    5.To lower blood cholesterol
    6.To increase the bone of calcium in calm
     
    Application of estradiol                                  
     
    1-Applied in pharmaceutical field, Estradiol is used as Endocrine System Agents;
    2-Applied in Chemicial field, Estradiol can be used as Auxiliaries and Other Medicine Chemicals.

     

    Specificationof estradiol                                  

     

    ITEMS

    SPECIFICATION

    RESULTS

    BP2010 /EP6

    Appearance

    crystalline powder

    Conforms

    Melting point

    About 205°C

    206.4°C~206.7°C

    Identification

    Meet the requirements

    Conforms

    Appearance of

    solution

    Clear, not more intense than Y7

    Conforms

    PH

    2.4~3.0

    2.60

    Loss on drying

    ≤0.5%

    0.04%

    Sulphated ash

    ≤0.1%

    0.01%

    Heavy metals

    ≤20 ppm

    <20 ppm

    Related substances

    ≤0.25%

    Conforms

    Assay

    99.0%~101.0%

    99.8%

    USP32

    Identification

    Meet the requirements

    Conforms

    Loss on drying

    ≤0.5%

    0.04%

    Residue on ignition

    ≤0.1%

    0.01%

    Heavy metals

    ≤0.003%

    <0.003%

    Residue solvent - Ethanol

    ≤0.5%

    <0.04%

    Chloride

    16.9%~17.6%

    17.1%

    Assay

    98.0%~102.0%

    100.0%

    Conclusion: The product complies with BP2010/USP32/EP6 standard

     

    Packaging & Shipping

    2

     

     

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    Our Services

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    Company Information

    Qingdao Xigema Chemical Co., Ltd. Import And Export Co., Ltd is is a global chemical industry manufacturers and suppliers of pharmaceuticals and intermediates, food and feed additives, herbal extracts, agrochemicals and fine chemicals etc.

    The aim of Xigema is a quality policy that "Elements in the system all have been satisfied, Personnel has been trained; Every batch of material is checked, Each procedure guarantees the quality; Every bag of our products is top grade, Service is thoughtful all the time, quality and reputation to increase market share and promote enterprise development. The quality, colors and forms of our products have reached a high level in related chemical industry, which relies on characteristic and advanced processing technology and it has gained a high and reliable reputation from customers at both quality and services.

    Qingdao Xigema has become the "Top 500 Chinese manufacturing companies","Top 20 of global chemical sales".Qingdao Xigema has 21 subsidiaries and holding companies.

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    FAQ

    Q1: Are you a manufacturer?
    Answer: Yes, we are factory founded on 2002.
     
    Q2: How to contact with us?
    Click the Alibaba "Contact Supplier" And then send us message the product you interest in, you will get reply within 24 hours.
     
    Q3:Which kind of payment terms do you accept?
    For small order,you can pay by T/T,Western Union or Paypal,nomal order by T/T to our company account
     
    Q4:Can you give me a discount price?
    Surely,It depend on your qty
     
    Q5:How can i get a sample?
    free samples is available,but freight charges will be at your account and the charges will be return to you or deduct from your order in the future.
     
    Q6: How to confirm the Product Quality before placing orders?
    A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.
     
    Q7:How do you treat quality complaint?
    A:First of all, our quality control will reduce the quality problem to near zero. If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss.


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