| 
  
    |  |  
    | QCC Cat No.: | QK202020 |  
    | Chemical Name: | Ketotifen Impurity 20 |  
    | Synonyms: | (E)-3,5-dihydroxy-4-(10-oxo-9,10-dihydro-4H-benzo[4,5]cyclohepta[1,2-b]thiophen-4-ylidene)piperidin-2-one |  
    | CAS No.: | NA |  
    | Molecular Formula: | C18H15NO4S |  
    | Molecular Weight: | 341.38 |  
    | ================================================ |  
    | Standard Reference Material For "Ketotifen Impurity 20" Warning:The form of the product salt may be different from the official website,please consult your local agent for details.
 |  |  |  |