Celecoxib Impurity B
| Name of Impurity/Standard | Celecoxib Impurity B |
| CAS No. | 331943-04-5 |
| Molecular Formula | C₁₇H₁₄F₃N₃O₂S |
| Molecular Weight | 381.37 g/mol |
| Synonyms: 4-[3-(4-Methylphenyl)-5-(trifluoromethyl)-1H-pyrazol-1-yl]benzenesulfonamide; USP Celecoxib Related Compound B; Celecoxib EP Impurity B | |