Anti-Estrogens letrozole / Femara white powder steroid Powders CAS 112809-51-5

CAS : 112809-51-5

Molecular Formula: C17H11N5 

Molecular Weight: 285.31

Molecular Structure:

White or light yellow crystal

Usage: Used as API in Treatment of breast disease.  

Description:

Femara(generic name is letrozole) is a new drug developed for the treatment of advanced breast cancer in women. Femara is the second in a new class of third-generation selective oral aromatase inhibitors.

It acts by blocking the enzyme aromatase, subsequently blocking the production of estrogen. Since many forms of breast cancer cells are stimulated by estrogen, it is hoped that by reducing amounts of estrogen in the body the progression of such a disease can be halted. This is the basic premise behind Nolvadex, except this drug blocks the action and not production of estrogen.

The effects of Femara can be quite dramatic to say the least. A daily dose of one tablet (2.5 mg) can produce estrogen suppression greater than 80 % in treated patients. With the powerful effect this drug has on hormone levels, it is only to be used (clinically) by post-menopausal women whose disease has progressed following treatment with Nolvadex. Side effects like hot flushes and hair thinning can be present, and would no doubt be much more severe in pre-menopausal patients.

When used with strong, readily aromatizing androgens such as Dianabol or testosterone, gynecomastia and water retention can be effectively blocked. In combination with Propecia (finasteride), we have a great advance.

With the one drug halting estrogen conversion and the other blocking 5-alpha reduction (testosterone, methyltestosterone and Halotestin only), related side effects can be effectively minimized. Here the strong androgen testosterone could theoretically provide incredible muscular growth, while at the same time being as tolerable as nandrolone.

Additionally the quality of the muscle should be greater, the athlete appearing harder and much more defined without holding excess water.

Competitive Advantage: 

1. Rich experience. 

We specialize in this field for many years. Our steroids and hormones have been exported to overseas, like Europe, Africa, Asia, America and other countries. And we have got very good feedback from our customers, and established long friendly relations of cooperation. 

2. Great quality, purity and favorable. 

Good quality is one secret for our success. Welcome order the samples, MOQ just 10 grams. 

3. Safest and fastest delivery. 

We have adequate stock, and can arrange the delivery within 24hours when receiving the payment. Tracking number would be informed quickly after shipment. 

We have special way which could ship 0.01 kilo to 50 kilo products a time. 

3000USD/KG
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