Certificate of Analysis

 

Product Name: Zafirlukast
Catalog Number: M3548
CAS Number: 107753-78-6

Physical and Chemical Properties
Formula: C31H33N3O6S
Molecular Weight: 575.68
Form: Solid
Solubility: DMSO 90 mg/mL
Storage: Powder          -20°C   3 years ;  4°C   2 years
In solvent       -80°C   6 months ;  -20°C   1 month
Chemical Structure: Zafirlukast Structure
Analytical Data
QC Standard: >99.0%
H-NMR: Consistent with structure
Product Information
Description: Zafirlukast is a leukotriene receptor antagonist (LTRA) with IC50 of 0.6μM (IC50=7.0 µM for CYP2C9).
   
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.