4-(5-(P-tolyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfonamide-13C6,4-(5-(P-tolyl)-3-(trifluoromethyl)-1H-pyrazol-1-yl)benzenesulfonamide-13C6,Celecoxib-13C6 a selective cyclooxygenase-2 (COX-2) inhibitor. Anti-inflammatory. Used in treatment of familial adenomatous polyposis. This is the labeled analog.,Celecoxib