Formoterol fumarate CAS NO.43229-80-7

Appearance:whiteorpaleyell

Appearance : white or pale yellow crystalline powder 

Identification         1) according to JP14          

                                  2)UVλmax=282-286;   

                                         λmax=242-248                 

                                  3)IR                               

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  Related Substance      HPLC;The sum of the areas of 

 

secondary peak (deducting fumaric acid peak)

Is not reater than 1.0 % the sum area of peak.  

 

 

Water             4.0-5.0% .the method of K.F        

Sulphate Ash               0.1 % max         

Heavy Metal               20ppm max                    Complies

 

Assay   It contains not less than 98.5% of 

C19H24N2O4.1/2C4H4O4 calculated

With refernce to the anhydrous substance