Letrozole (Femara / Formestane) CAS 112809-51-5

01 Overview

Female hormones that occur naturally in the body can increase the growth of some breast cancers. Letrozole works by decreasing the amounts of these hormones in the body.

02 Details

Medication Femara Letrozole Bodybuilding Natural Anti Estrogen Supplements For Men 112809-51-5

 

Quick Detail:

 

Product name Letrozol
Other name Femara
CAS 112809-51-5
MF C17H11N5
MW; 285.3
Usage Used as API in Treatment of breast disease.
Assay 99%
Appearance: White Powder
Skype josiesteroids
Whatsapp: +8613168027820

 

Description:
Letrozole is approved by the United States Food and Drug Administration (FDA) for the treatment of local or metastatic breast cancer that is hormone receptor positive or has an unknown receptor status in postmenopausal women.Letrozole is intended for use only by women who are no longer of childbearing age. Possible candidates must have already ceased to menstruate. It is often used in patients who have already undergone other cancer treatments, such as radiation, chemotherapy, and used other cancer drugs, like tamoxifen. This nonsteroidal aromatase inhibitor may help prevent any remaining cancer cells from spreading.

Femara is used for the treatment of post-menopause breast cancer. Femara 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 include a lowered sex drive and continuous use can lead to lowered lipid function and an impaired immune system.

 

 

Applications:

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.

 

 

Usage:

Letrozole(Femara )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 Femara include a lowered sex drive and continuous use can lead to lowered lipid function and an impaired immune system.

 

 

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 182ºC-184ºC 182ºC
Related substances ≤0.5% 0.3%
Single impurity ≤0.3% 0.2%
Loss on drying ≤1.0% 0.8%
[Assay] ≥98.0% 99.2%
Conclusion Conforms Specifications of Enterprise Standard.

 

Company Introduction:

(1) High Quality:Wuhan Wang Lianshang Biotechnology Co., Ltd. is a steroids manufacturer with its own lab and factory.
The purity of our product is tested by our quality department before it is shipped to our clients. Mostly steroids are 99% purity and approved by SGS,CTI and ITS.

(2) Favorable Price:Our price meets international market performance and we give the best doiscounted price for our new customers and promotioned price for our regular customers.

(3) Safe Fast Delivery:After receiving your payment,we will have professional package team to arrange your parcel within 12 hours.We can guarantee every goods can be successfully deliveried

(4) Available Shipment Way:EMS,HongKong Post,DHL,TNT,UPS,FedEx,Registered Mail,Air Express,Sea Vessel etc

(5) After-Sale Service:We can offer you good service after you place an order.At the same time,we can offer you some homebrew recipe to make injection.More service is more available to you.

Order Enquiry

  • 2 + 62 =

 

03 Comments

Leave a Reply

Your email address will not be published. Required fields are marked *