| Catalogue Number: | E-455 | 
| Compound Name: | Etoricoxib Impurity 1 | 
| Synonyms: | 5-chloro-3-(4-(methylsulfonyl)phenyl)-[2,3'-bipyridine]-6'-carboxylic acid | 
| CAS#: | 349536-39-6 | 
| Alternate CAS#: | |
| Molecular Formula: | C18H13ClN2O4S | 
| Molecular Weight: | 388.82 | 
Etoricoxib Impurity 25 (2-Chloro-N,N-Dimethyl Aminotrimethinium Perchlorate)
C7H14ClN2 . ClO4
M.W. 161.66 99.45