Letrozole

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Femara Anti-Estrogen Steroids Letrozole For Women Breast Cancer Treatment and Muscle Building

Quick Detail:
Letrozole
Alias: Femara
CAS No: 112809-51-5
MF: C17H11N5
MW: 285.3
Purity: 98%
Appearance: white powder.

Description:

Letrozole is a powerful Aromatase Inhibitor that was developed to fight breast cancer. 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.
Letrozole 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.

Applications:

Letrozole 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. Letrozole may also be used to treat infertility in women

Less serious side effects may include:

  • hot flashes, warmth or redness in your face or chest;
  • headache, muscle or joint pain;
  • night sweats;
  • weight gain;
  • fatigue, feeling weak;
  • nausea; or
  • swelling in your hands, ankles, or feet.

Specifications:

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%

0.3%

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 Enterprise Standard.


competitive advantage :

1. Best prices with satisfied quality ,Great quality and purity

2. Perfect Packing and safe ,fast delivery.

we have sold these products for many years , our enrich experience make our products have a high rate to pass your country custom.

3 good after-sales service

We can provide the easier way to help our regular clients to convert steroid powders to injectiable oil

some of my customers feedback :

1. i have received my products , you packing is do discreet and perfect , it really amazed me .i will order more from you as soon as possible . thanks a lot.

--------------Robet--Australia

2. i have cooperated with you for many times , your product quality is so great , that is why i still buy the products from you . thank you

-----------Richard---American

3 Hi mate, your best price and high purity product is so competitive in my country , this let me make much profit , my customers are really like it . cooperate with you is so wonderful ! thak you

--------------Johnson---Canada

5 out of 5 from 1 reviews

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