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USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment

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Good quality Androgenic Anabolic Steroids for sales
Good quality Androgenic Anabolic Steroids for sales
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USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment

China USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment supplier
USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment supplier USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment supplier

Large Image :  USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment

Product Details:

Place of Origin: China
Brand Name: LSW
Certification: GMP,SGS,BV,ISO
Model Number: LSW-120-1

Payment & Shipping Terms:

Minimum Order Quantity: 10g
Price: Negotiable
Packaging Details: Foil bag, disguised discreat package or according to customer needs.
Delivery Time: Within 12 hours after payment
Payment Terms: T/T, , MoneyGram,Bitcoin
Supply Ability: Mass in stock
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Detailed Product Description
CAS Registry Number: 112809-51-5 MF:: C17H11N5
Molecular Weight:: 285.31 Appearance: White Crystalline Powder
Purity: 99% Shipping Method: Air&Sea Transporation,Express
High Light:

Estrogen Blocker Steroids

,

Pharma Grade Steroids

USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment

 

Description

Letrozole(Femara) was first developed in an effort to combat breast cancer in post-menopausal women. In fact, it would prove to be virtually identical to the already popular AI in Arimidex (Anastrozole). While intended for breast cancer treatment, like many AI’s, it has found a welcomed home among anabolic steroid users. Letrozole is one of the most commonly used anti-estrogens among steroid users duringsteroid use to combat possible estrogenic related side effects. It is so effective as an anti-estrogen in this regard many anabolic steroidshave effectively reversed gynecomastia symptoms with Letrozole.

 

Quick Details

Product name:Letrazole,Femara
Synonyms:4,4'-(1h-1,2,4-Triazol-1-Ylmethylene)Bisbenzonitrile; Lelrozol; 4,4'-(1h-1,2,4-Triazol-1-Ylmethylene) Bis-Benzonitrile;Letrozol; Femara
CAS:112809-51-5
Molecular Formula:C17H11N5
Molecular Weight :285.31
Melting point:181-183ºC
Appearance: Off-white crystalline powder
Assay:99.5%
Shipment: EMS, DHL, FedEx.ect 

Please kindly contact us to know more by dawn@ycphar.com Whatsapp:+86 18872220653 

Application

Letrazole(Femara) is used to treat certain types of breast cancer (such as hormone-receptor-positive breast cancer) in women after menopause. Letrozole is also used to help prevent the cancer from returning. Some breast cancers are made to grow faster by a natural hormone called estrogen. Letrozole decreases the amount of estrogen the body makes and helps to slow or reverse the growth of these breast cancers.This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.

This medication may also be used to treat infertility in women.

 

1)How Letrozole Works

Letrozole lowers the levels of the female sex hormone oestrogen in the body. Oestrogen stimulates some breast cancers to grow. These breast cancers are called hormone sensitive or hormone receptor positive. Letrozole can stop or slow the growth of these cancers. It can also reduce the chance of a breast cancer coming back after surgery.

Letrozole only works in women who have had their menopause. It is a type of drug called an aromatase inhibitor. After the menopause, women don’t produce oestrogen from their ovaries. But they still produce a small amount by using an enzyme called aromatase which turns other sex hormones called androgens into oestrogen. This change happens mainly in fatty tissue, muscle and the skin. Aromatase inhibitors block aromatase so that it can’t change the androgen into oestrogen.

 

2)Effects of Letrozole

Letrozole as an anti-estrogen is extremely beneficial to breast cancer patients. Many forms of breast cancer actively feed off the estrogen hormone. By inhibiting the production of estrogen, which in turn lowers the amount of circulating estrogen in the body, this has the ability to starve the cancer. For years Nolvadex was the preferred form of treatment for this purpose. Nolvadex actively binds to the estrogen receptor, thereby preventing estrogen from binding. However, it does not inhibit or lower production. Nolvadex is still extremely valuable in breast cancer treatment plans, but many physicians, especially in extreme cases have begun to use AI’s first. Once the cancer is in remission, at this stage a SERM like Nolvadex may replace the AI in an effort to protect against the cancer reappearing.

Undeniably, AI’s like Letrozole are the most effect means at combating estrogenic related side effects. However, they can also have a negative impact on cholesterol. Alone AI’s do not appear to have a strong, negative effect on cholesterol, but when coupled with an aromatizing steroid like testosterone the adverse cholesterol effect is enhanced. For this reason, many will find SERM’s like Tamoxifen Citrate (Nolvadex) should be their first choice in estrogen protection. SERM’s will not negatively affect cholesterol; in fact, SERM’s, while anti-estrogenic, actively act as estrogens in the liver, and in turn, promote healthier cholesterol levels. We’ll look at this in more detail in the side effect section, and while Letrozole can be used without an adverse cholesterol effect, it will take some effort on your part.

 

 

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℃-184℃ 182℃
Related substances <0.5% 0.30%
Single impurity <0.3% 0.20%
Loss on drying <1.0% 0.80%
[Assay]C17H11N5 (On anhydrous basis) >98.0% 99.20%
Conclusion Conforms Specifications of USP35  

 

Our Advantage

High quality with competitive price
1) Standard: Enterprise Standard
2) All Purity:>=99%
3) We are manufacturer and can provide high quality products with factory price.

Fast and safe delivery:
1) Parcel can be sent out in 24 hours after payment. Tracking number available
2) Secure and discreet shipment. Various transportation methods for your choice.
3) Customs pass rate: >=99%
4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe, and we have stock in there for transferring.

We have clients throughout the world:
1) Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their desire.
2) Market feedback and goods feedback will be appreciated, meeting customers's requirement is our responsibility.
3) High quality, competitive price, fast delivery, first-class service gain the trust and praise from the customers.

 

 

FQA
USP Anti-Estrogen Letrazole 112809-51-5 Femara Powder 99% Purity for Infertility and Breast Cancer Treatment
 

 

Here we also supply products as following, If you are interested, please feel free to let me know
Mobile: +86 18872220696
Email:hope@ycphar.com
Skype:hopec95817

 

ANTI-ESTROGEN
Tamoxifen Citrate (Nolvadex) CAS:54965-24-1
Clomiphene citrate CAS:50-41-9
Toremifene citrate CAS:50-41-9
Exemestane(Aromasin) CAS:107868-30-4
Anastrozole (Arimidex) CAS:120511-73-1
Letrazole(Femara) CAS:120511-73-1
Methoxydienone CAS:2322-77-2
Estradiol CAS:50-28-2
Norgestrel CAS:6533-00-2

 
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