Letrozole CAS No 112809-51-5

Letrozole / Femara Steroid Powders For Bodybuilding and Women Breast Cancer Treatment CAS 112809-51-5 Description: Letrozole Alias: Femara CAS No: 112809-51-5 MF: C17H11N5 MW: 285.3 Purity: 99% Appearance: white powder. Applications: Femara (letrozole) is a type II (non-steroidal) third...
Product Details

 Letrozole /  Femara Steroid Powders For Bodybuilding and Women Breast Cancer Treatment CAS  112809-51-5


 Alias: Femara
 CAS No: 112809-51-5
 MF: C17H11N5
 MW: 285.3 


 Purity: 99%
 Appearance: white powder.


Femara (letrozole) is a type II  (non-steroidal) third generation aromatase inhibitor. Clinically it is used to  treat postmenopausal women with either estrogen receptor positive or estrogen  receptor unknown breast cancer.
 In women with breast cancer, it has  been shown to reduce estrogen levels by 98% or more (1). However, it’s use and  benefits are not limited to eliminating estrogen in women.
 For pre-contest bodybuilders, Letrozole  is almost a necessity to eliminate water retention and achieve the ripped look  necessary to compete in today’s bodybuilding world. However, in my experience,  it is only necessary to be used for the last 4-6 weeks, to eliminate excess  estrogen and water retention. After using Letrozole I recommend staying away  from any estrogen suppression for at least a month to try to normalize the  body.






White or off-white crystaline powder

Crystalline powder


Soluble in Chloroform;
Soluble in ethanol when heated



(1)Maximum absorption in wavelength of 240 nm
Minimum absorption in wavelength of 215 nm


(2)Infrared spectrum should be in   accordance the dominant peak of contrast

In accordance with the dominant peak of contrast

Melting points



Related substances



Single impurity



Loss on drying



(On anhydrous basis)




Conforms Specifications of Enterprise Standard.


 Q1: Have your Product Quality been Approved by Third  Party Lab?
 A: Yes, All products are strictly tested by our QC, confirmed by QA and  approved by third party lab in China, USA, Canada, Germany, UK, Italy, France  etc. So you will be assured with Good Quality if you choose us.   
 Q2:How do you treat quality complaint?

 A:First of all, our QC department will do strict examination of our export  products by HPLC, UV, GC , 
 TLC and so on in order to reduce the quality problem to near zero. If there is  a real quality problem ,caused by us, we will send you free goods for  replacement or refund your loss.  
 Q3. How to cooperate with us?
 You can contact us for cooperation through the website contact information, or  contact with the salesmen in our company. We will connect you about the specific  detail via email.  
 Q4: Do you Accept Sample Order?
 A: Yes, we accept small order from 10g, 100g and 1kg for your evaluation  quality of our goods. 
 Q5: Is there any discount?
 A: Yes, for larger quantity, we always support with better price.  
 Q6:What payment you can accept ?
 A:we can accept T/T  , Moneygram , Western Union, Paypal. 
 Q7How long does it take to the goods arrived ?
 A:It is Depending on your location,
   For small order, please expect 7-10 days by  DHL,UPS,TNT, FEDEX, EMS.
 For mass order, please allow 10-15 days by Air, 20-35 days by Sea. 
 Q8 Do  you  have  any  reshipment  policy  ?  
 we have good after-sale service and re-shipment policy if the  parcel  lose
 Our long association with  our clients has brought great benefits
 We always take the upmost care in the packaging of our products 
 our clients will confirm this as even they struggle to find them without help  at times.
 But in spite of our best efforts it is still possible  will seize  a small number of packages.
 In this circumstance we promise reship free  to  establish  long term relationship  
 Q9 How to proceed order?
 Let me konw the items,quantity and the destination contury wihch help me to  give you a right price
 Please let me know the items you are looking for, quantity and the destination  country.After you confirm all details of order, pay money 100% in advance and  give us Shipping address.We arrange the shipment at first time after receive  payment and offer after-sales service after you receive parcel.







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