Product details: 
| 
 ITEM  | 
 FORMULA  | 
 MW  | 
 SPECIFICATION  |  
| 
 Zanamivir  | 
 C12H20N4O7  | 
 332.31  | 
 ≥98%  |   
and its intermediate: 
 
| zanamivir intermediate | 
CAS: | 
131-48-6 | 
Spc.: | 
98%min. |  
| zanamivir intermediate | 
CAS: | 
130525-58-5 | 
Spc.: | 
98%min. |  
| zanamivir intermediate | 
CAS: | 
130525-62-1 | 
Spc.: | 
98%min. |  
| zanamivir intermediate | 
CAS: | 
4887-11-0 | 
Spc.: | 
98%min. |    |