China Supply Low Price CAS No 57-63-6 Ethynyl Estradiol

Product Description:99% Ethynyl estradiol CAS 57-63-6 Ethynyl estradiol:

NameEthynyl estradiolSynonyms17a-Ethynyl-1,3,5(10)-estratriene-3,17b-diolMolecular FormulaC20H24O2Molecular Weight296.41CAS Registry Number57-63-6EINECS200-342-2

The phosphate salt form of ruxolitinib, an orally bioavailable Janus-associated kinase (JAK) inhibitor with potential antineoplastic and immunomodulating activities. Ruxolitinib specifically binds to and inhibits protein tyrosine kinases JAK 1 and 2, which may lead to a reduction in inflammation and an inhibition of cellular proliferation. The JAK-STAT (signal transducer and activator of transcription) pathway plays a key role in the signaling of many cytokines and growth factors and is involved in cellular proliferation, growth, hematopoiesis, and the immune response; JAK kinases may be upregulated in inflammatory diseases, myeloproliferative disorders, and various malignancies.
Main functions of Ethynyl estradiol CAS 57-63-6 :

Estrogens direct the development of the female genotype in embryogenesis and at puberty. Estradiol is the major estrogen secreted by the premenopausal ovary. Ethynyl estradiol is a synthetic analog of 17β-estradiol. Efficacy of oral administration of ethynyl estradiol is facilitated by the ethynyl substitution at the C-17 position, which inhibits first pass hepatic metabolism. Ethynyl estradiol is also rapidly and almost completely absorbed from the gastrointestinal tract.

Company Information:
Crovell is a fast growing intermediates company,Which located in Shijiazhuang,Hebei Province.
Crovell is specialized in pharmaceutical intermediates, veterinary drug intermediates and dyes intermediates,such as benzyl chloride etc., Crovell also supply various industrial chemicals for customers, such as citric acid,potassium chloride,calcium formate etc.
After ten years development,Crovell has become a Diversified development company,not only involves in chemicals, but also real estate ,clothes ,agricultural products and so on.
So far, Crovell has business in more than 35 countries,most big customers come from europe and America, because among the suppliers in china,Crovell can always make the product quality best, some of the products from Crovell can reach the purity of 99.9+, such as 2-phenylacetamide. This is the important reason for customers who choosing Crovell.
In future, Crovell must become to a more important trade bridge for china and foreign countries especially in pharmaceutical industries.
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Why choose us?
1. Quality
Our products meet MSDS safe standard and we have ISO and other certificate so yan can get high quality products from our company.
2. Price
We are the company which is the joint of trade and industry so we cao provide the competitive price and high quality product.
3. Packing
We can do according to the customers' request.
4. Transport
The products can be transported by Courier, by air or by sea
5. Service
We 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.
FAQ:
Q1. Can I have a sample order for your products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than
Q3. Do you have any MOQ limit for order?
A: Low MOQ, 10-100g for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Q5. How to proceed an order for your products?
A: Firstly let us know your requirements or application.
Secondly We quote according to your requirements or our suggestions.
Thirdly customer confirms the samples and places deposit for formal order.
Fourthly We arrange the production.
Q6. Is it OK to print my logo on package?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
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