Letrozole Raws

Letrozole
Letrozole
  • Model: steroid-39
  • 1000 Kilogram in Stock

Company Name: Shanghai MeiHua

Certification: ISO9001, SGS, KOSHER

Delivery Time: 5~8 working days

Delivery Way: Domestic Delivery in Canada, Europe

Payment Terms: T/T, Western Union, MoneyGram, Bitcoin

Email: sale@getraws.com

WhatsApp: +8617612057092


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Details:

Trade Name: Femara
Bioavailability: 99.9%
Biological Half-life: 2 days
CAS Number: 112809-51-5
Formula: C17H11N5
Molar Mass: 285.303 g/mol
Assay: 99% Min
Character: White Crystalline Powder
Functions: Female Breast Cancer Treatment
State: Solid
Suitable for: Elderly, Adult
Delivery: Within 24hours After Your Payment

 

Domestic Delivery Service
In order to provide best service for you, we established agency in Canada. You can directly buy our raw steroids powders in our agency if you need. Our domestic delivery service countries include Canada, USA, UK, Germany, Australia, France, Italy, etc. Please don't hesitate to contact me whatever problems you have.

 

Introdcutions about Femara Letrozole
Letrozole is a type of hormone therapy drug used to treat breast cancer in women who have had their menopause. It is also called Femara. Letrozole is used treat early breast cancer in women who have experienced menopause (change of life; end of monthly menstrual periods) and who have had other treatments, such as radiation or surgery to remove the tumor. It is also used to treat early breast cancer in women who have experienced menopause and who have already been treated with a medication called tamoxifen (Nolvadex) for 5 years.
Letrozole is also used in women who have experienced menopause as a first treatment of breast cancer that has spread within the breast or to other areas of the body or in women whose breast cancer has worsened while they were taking tamoxifen. Letrozole is in a class of medications called non-steroidal aromatase inhibitors. It works by decreasing the amount of estrogen produced by the body. This can slow or stop the growth of some types of breast cancer cells that need estrogen to grow.

 

Femara Functions
Letrozole is used for the treatment of post-menopause breast cancer. Femara 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.Femara 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.

 

Letrozole Functions Work Way
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.

 

COA of Femara Letrozole

 

ANALYSIS

SPECIFICATIONS

RESULTS

Assay

98.0-102.0%

99.8%

CHEMICAL CONTROL

Identification

IR
HPLC
UV

conform with standard IR conform
conform

Related substances

 

Related substances  A

0.3%(max)

0.07%

any other impurity

0.1%(max)

0.03%

all other impurities

0.3%(max)

0.07%

Organic volatile impurities

Conforms with ICH requirements

Residual solvents

dichloromethane

Nmt 600ppm

complies

Methanol

Nmt 3000ppm

complies

Acetone

Nmt 5000ppm

complies

ethanol

Nmt 5000ppm

complies

PHYSICAL CONTROL

Description

White to yellowish, crystalline powder

Complies

Water by KF

0.3%(max)

0.13%

Residue on ignition

0.1%(max)

0.04%

Heavy metals

0.001%(max)

Complies

 

STORAGE

Cool and dry

SHELF LIFE

24 months

Conclusion: It conforms to USP32



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