Business Type:Trading Company
Product Certification&
Enterprise Certification
Country: China (Mainland)
Business Type:Trading Company
CAS NO.112809-51-5
Enterprise Standard(10-100)GramEnterprise Standard(101-1000)Gram
1 High quality with competitive price:
1) Standard: Enterprise Standard
2) All Purity≥98%
3) We are manufacturer and can provide high quality products with factory price.
2 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.
3 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.
99% Purity Anti Estrogen Powder Femara Letrozole For Anti Cancer
Product Name |
Letrozole |
CAS No |
112809-51-5 |
Molecular Formula |
C17H11N5 |
Molecular Weight |
285.31 |
Purity |
99% |
Appearance |
White or light yellow crystal |
Suitable for |
Elderly, Adult |
Certification |
GMP, ISO 9001, USP |
Standard |
Enterprise Standard |
Usage |
Used as API in Treatment of breast disease. |
Packing |
Discreet packing ways as your requirement, 100% go through |
Storage |
Store in cool and dry area and keep away from direct sunlight |
Description:
Femara is a type of hormone therapy drug used to treat breast cancer in women who have had their menopause. It is also called Femara.
Femara 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. Femara can stop or slow the growth of these cancers. It can also reduce the chance of a breast cancer coming back after surgery.
Femara 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.
Application:
Femara is a non-steroidal aromatase inhibitor (lowers estrogen production) used to treat breast cancer in postmenopausal women. It is often given to women who have been taking tamoxifen (Nolvadex, Soltamox) for 5 years. Femara is available in generic form. Common side effects of Femara include hot flashes, hair loss, joint/bone/muscle pain, tiredness, unusual sweating or night sweats, nausea, diarrhea, dizziness, trouble sleeping, drowsiness, weight gain, weakness, flushing (warmth, redness, or tingly feeling), headache, constipation, numbness/tingling/weakness/stiffness in your hand or fingers, or pain in your hand that spreads to your arm, wrist, forearm, or shoulder.
Usage:
Letrozoles has a 2-4 day half-life, and it needs to be taken for up to 60 days to get a steady blood plasma level, using Letrozolesat such a low dose does happen to make it a very good economic choice compared with other aromatase inhibitors.
COA:
Test |
Specification |
Result |
Appearance |
White or off-white crystaline powder |
White Crystalline powder |
Solubility |
Soluble in Chloroform; |
Conform |
Soluble in ethanol when heated |
||
ldentification |
(1)Maximum absorption in wavelength of 240 nm Minimum absorption in wavelength of 215 nm |
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]C17H11N5 |
≥98.0% |
99.2% |
Conclusion |
Conforms Specifications of Enterprise Standard. |