High Quality Raw Ma...

High Quality Raw Materials powders Letrozole

High Quality Raw Materials powders Letrozole

Min.Order / FOB Price:Get Latest Price

1 Gram

Negotiable

  • Min.Order :1 Gram
  • Purity: 99%
  • Payment Terms : T/T,

Keywords

Letrozole Letrozole Letrozole

Quick Details

  • Appearance:white powder
  • Application:Used in the treatment of breast cancer.
  • PackAge:aluminum foil bag
  • ProductionCapacity:100|Kilogram|Month
  • Storage:cool and dry place
  • Transportation:EMS,DHL,HK post,EUB,ETK,NL post,Germany post

Superiority:

1.High Quality:
Quality is life. Quality is the most important element for all goods. We have a lab doing research in Wuhan China and produce sarms in bulk quantity. We have 8 years experience making all kinds of sarms. And all our old customers throughout the world have very positive feedbacks towards our sarms. Purity is all guaranteed over 98%. HPLC and NMR is available if needed.
 
2.Reasonable price:
We provide high quality products with competitive price in China. All customers are welcomed to send us inquiries and get quotation.
 
3.Low MOQ:
No worry about the low MOQ, our MOQ is 1 gram or even lower.
 
4.Good Service. 
Fast response. We promise to reply within 24 hours including holidays and send quotation sheet and other documents within 48 hours.                                                                   
Before making orders, we do not cheat customers in order to get orders.
After selling, we promise to be reponsible and so not disappear if there is any complaint from customers on either our products or services.
 
5. Fast shipping and secure courier.
We promise to send out products and provide tracking number within 3 working days. And we send via different couriers based on different destination countries. We usually use NL post, HK post, Germany post, EUB, ETK, etc.
 
6.About resending or refunding if there is any loss of packages or failure to getting through custom.
We promise to resend up to half if it happens unluckily.

Details:

Product Description

Letrozole is an oral  inhibitor for the treatment of hormonally-responsive breast cancer after surgery.
Letrozole prevents the aromatase from producing estrogens by competitive, reversible binding to the heme of its cytochrome p450 unit, the action is specific,and letrozol does not reduce production of mineralo-or corticoids.

Function and Application

Pyrrole type aromatization enzyme inhibitors. Used in the treatment of breast cancer.

Specification

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°C-184°C

182°C

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.

 

 

 

 

 

 

Packing and shipping

 

 

 

 

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