The chemical Parecoxib has a designated molecular formula of C19H18N2O4S and a molecular weight of 370.423 g/mol. Synonyms may include: SC 69124, UNII-9TUW81Y3CE, Parecoxib (ChemID). Parecoxib has been assigned a MeSH pharmacological action of: Cyclooxygenase 2 Inhibitor.