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99% Purity Letrozole Powder Anti Estrogen Steroids Femara CAS 112809-51-5 for Breast Cancer

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99% Purity Letrozole Powder Anti Estrogen Steroids Femara CAS 112809-51-5 for Breast Cancer

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Large Image :  99% Purity Letrozole Powder Anti Estrogen Steroids Femara CAS 112809-51-5 for Breast Cancer

Product Details:
Place of Origin: China
Brand Name: ChineseHormone
Certification: ISO9001,SGS,UKAS
Model Number: 112809-51-5
Payment & Shipping Terms:
Minimum Order Quantity: Free samples Available
Price: Negotiable
Packaging Details: Discreet package or as required
Delivery Time: 3-6 working days
Payment Terms: T/T, Western Union, MoneyGram,BItcoins
Supply Ability: 500 kg / month
Detailed Product Description
Assay: 99% Character: White Crystalline Powder
Grade: Pharmaceutical Grade Packing: Discreet Ways Of Packing For Customs Pass Guaranteed
High Light:

sex hormones drugs

,

natural anti estrogen

 

99% Purity Letrozole Powder Anti Estrogen Steroids Femara CAS 112809-51-5 for Breast Cancer

 

Product Name: Letrozole
Synonyms: 4,4'-(1H-1,2,4-TRIAZOL-1-YLMETHYLENE) BIS-BENZONITRILE;FEMARA;CGS-20267;LETROZOL;LETROZOLE;LetrozoleUsp28;Letrozole99%;CGS-20267, Femara
CAS: 112809-51-5
MF: C17H11N5
MW: 285.3
Melting point: 181-183°C
Product Categories: Anti-Cancer;Pharmaceutical material and intermeidates;Active Pharmaceutical Ingredients;Letrozole;Antineoplastic;All Inhibitors;anti-neoplastic;Inhibitors;Intermediates & Fine Chemicals;Pharmaceuticals;API's;APIs;Antibiotics;Aromatics;Heterocycles;ELOXATIN;Anti-cancer&immunity
Mol File: 112809-51-5.mol
Letrozole Structure

 
Usage:
 
Letrozole is a powerful Aromatase Inhibitor that was developed to fight breast cancer. For athletes and bodybuilders, it is a drug used to combat the estrogenic side effects of anabolic steroids water-retention, acne and gynocomastia. It will also raise testosterone levels because of the lowered estrogen in the body. Side effects from Letrozole include a lowered sex drive and continuous use can lead to lowered lipid function and an impaired immune system.
 
Description:
 
Letrozole has been used for ovarian stimulation by fertility doctors since 2001 because it has fewer side-effects than clomiphene (Clomid) and less chance of multiple gestation. A Canadian study presented at the American Society of Reproductive Medicine 2005 Conference suggested that letrozole may increase the risk of birth defects.[citation needed] A more detailed ovulation induction follow-up study found that letrozole, compared with a control group of clomiphene, had significantly lower congenital malformations and chromosomal abnormalities at an overall rate of 2.4% (1.2% major malformations) compared with clomiphene 4.8% (3.0% major malformations). Despite this, India banned the usage of letrozole in 2011, citing potential risks to infants.In 2012, an Indian parliamentary committee said that the drug controller office colluded with letrozole's makers to approve the drug for infertility in India and also stated that letrozole's use for infertility was illegal worldwide; however, such off-label uses are legal in many countries such as the US and UK.
 
The anti-estrogen action of letrozole has been shown to be useful in pretreatment for termination of pregnancy, in combination with misoprostol. It can be used in place of mifepristone, which is expensive and unavailable in many countries.
 
Letrozole is sometimes used as a treatment for gynecomastia, although it is probably most effective at this if caught in an early stage (such as in users of anabolic steroids).
 
Letrozole has also been shown to delay the fusing of the growth plates in mice.When used in combination with growth hormone, letrozole has been shown effective in one adolescent boy with a short stature.
 
COA:

 

product Letrozole
Batch No 090805 Parking 1kg
Quantity 5kg Produce Date 2016.08.02
Ref Standard USP28 Exp Date 2019.08.01
Items And Results
Item Quality level Determination
Appearance White or off-white crystalline powder White Crystalline powder
Identification

(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

Solubility
 

Soluble in Chloroform;
Soluble in ethanol when heated

Conform
Single impurity ≤0.3% 0.2%
Related substances ≤0.5% 0.3%
Melting point

181℃~183℃

182.3℃
Heavy metals ≤20ppm ≤10ppm
Specific rotation +46~ +51 +48.5
Loss on drying ≤0.5% 0.21%
Residue on igntition ≤0.2% 0.04%
Assay 97.0~101.0% 99.1%
Conclusion Conforms Specifications of Enterprise Standard.
Operator 3 Checker 2

Q.C
Q.C.Manager

 

 
Applications:


Femara (letrozole) is a type II (non-steroidal) third generation aromatase inhibitor. Clinically it is used to treat postmenopausal women with either estrogen receptor positive or estrogen receptor unknown breast cancer.
In women with breast cancer, it has been shown to reduce estrogen levels by 98% or more (1). However, it’s use and benefits are not limited to eliminating estrogen in women.
 
For pre-contest bodybuilders, Letrozole is almost a necessity to eliminate water retention and achieve the ripped look necessary to compete in today’s bodybuilding world. However, in my experience, it is only necessary to be used for the last 4-6 weeks, to eliminate excess estrogen and water retention. After using Letrozole I recommend staying away from any estrogen suppression for at least a month to try to normalize the body.
 
99% Purity Letrozole Powder Anti Estrogen Steroids Femara CAS 112809-51-5 for  Breast Cancer 1

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