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Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker

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Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker

Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker
Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker

Large Image :  Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker

Product Details:
Place of Origin: China
Brand Name: Holybiological
Certification: SGS, ISO9001
Model Number: CAS NO.: 112809-51-5
Payment & Shipping Terms:
Minimum Order Quantity: 10g
Price: Negotiation
Packaging Details: Special Packing
Delivery Time: 5-7days
Payment Terms: Western Union, MoneyGram
Supply Ability: 100-300kg/month

Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker

Description
Product Name: Letrozole Appearance: White Powder
Expert Markets: Global Purity: 99%
Policy: Re-Shipping Policy Supply: In Stock
Shipment: FedeEx, EMS, HKEMS, TNT, DHL, UPS Standard: USP
High Light:

anti estrogen drugs

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Femara Bodybuilding Anabolic Anti Estrogen Steroids Letrozole Powder For Oral / Injection

 

Product Details: 

 

Product name: Letrozole

Other name: Femara

Synonyms: 4,4'-(1H-1,2,4-triazol-1-ylmethylene) bis-Benzonitrile

CAS NO.: 112809-51-5

Molecular Formula: C17H11N5

Molecular weigh: 285.31

Structural formula:

Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker 0

Standard: USP

Property: White to off white Crystalline Powder.

Melting Point: 181°C~183°C 

Usage: antineoplastic drug,Letrozole is a new generation of selective aromatase inhibitors, for the artificial synthesis of benzyl triazole derivative, inhibit aromatase, decreased estrogen levels, thereby eliminating stimulation of estrogen on tumor growth.

 

Product name

Letrozole

Synonyms

4,4'-(1H-1,2,4-Triazol-1-ylmethylene)bisbenzonitrile

CAS No.

112809-51-5

EINECS

NA

Molecular formula

C17H11N5

Molecular weight

285.31

Appearance

White crystalline powder

Assay

99%

Melting point

181-183 ºC

Packing

25kg/drum

Application

API

   

 

Description:

 

Letrozole is an oral non-steroidal inhibitor for the treatment of hormonally-responsive breast cancer after surgery.
Letrozole prevents the aromatase from producing estrogens by competitive, reversible binding to the heme of its cytochrome p450 unit, the action is specific,and letrozol does not reduce production of mineralo-or corticosteroids.

Letrozole lowers estrogen levels in postmenopausal women, which may slow the growth of certain types of breast tumors that need estrogen to grow in the body.

Letrozole is used to treat breast cancer in postmenopausal women. It is often given to women who have been taking tamoxifen (Nolvadex, Soltamox) for 5 years.

 

Specifications :

 

COA

 

Tests

Specifications

Results

Appearance

White or off-white crystaline powder

White

Crystalline powder

Solubility

 

Soluble in Chloroform;

Soluble in ethanol when heated

Conform

ldentification

(1)Maximum absorption in wavelength of 240 nm

Minimum absorption in wavelength of 215 nm

Conform

Conform

(2)Infrared spectrum should be in accordance 

the dominant peak of contrast

In accordance with the dominant 

peak of contrast

Melting points

182°C-184°C

182°C

Related substances

≤0.5%

0.3%

Single impurity

≤0.3%

0.2%

Loss on drying

≤1.0%

0.8%

[Assay]C17H11N5

(On anhydrous basis)

≥98.0%

99.2%

Conclusion

Conforms Specifications of USP35

 

Competitive Advantage:

 

1. We are a professional manufacturer of raw steroid powders from China. Our company has been specialized in this field for many years and won great reputation in all of our customers.
2. Our products have exported to US, Brazil, Canada, Germany, UK, Spain, France, Norway, Romania, Italy, Australia and many other areas. We build long-term cooperation relationship with all of the customers.
3. Could be shipped out within 24 hours after received the payment.
4. High quality, best price, first-class service, high successful delivery rate.

Cas 112809-51-5 Anti Estrogen Letrozole , Oral / Injection Femara Estrogen Blocker 1

 

Contact Details
Hubei Holy Biological Co., Ltd.

Contact Person: Cathy

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