Certificate of Analysis

 

Product Name: Letrozole
Catalog Number: M3699
CAS Number: 112809-51-5

Physical and Chemical Properties
Formula: C17H11N5
Molecular Weight: 285.30
Solubility: DMSO ≥ 45 mg/mL
Storage: Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Chemical Structure: Letrozole Structure
Analytical Data
QC Standard: 99.70%
H-NMR: Consistent with structure
Product Information
Description: Letrozole is an orally active, potent, selective, nonsteroidal, third-generation aromatase (CYP19A1) inhibitor, a synthetic benzyltriazole derivative, which is used in the construction of animal models of polycystic ovary syndrome (PCOS), as well as in studies related to postoperative hormone-responsive breast cancer.
   
Stability and Solubility Advice: Information concerning product stability, particularly in solution, has rarely been reported and in most cases we can only offer a general guide.
We recommend that stock solutions, once prepared, are stored aliquoted in tightly sealed vials and used within 1 month. Avoid repeated freeze and thaw cycles. Storage conditions for some special products should refer to their storage details.