Parecoxib Impurity 23

Parecoxib Impurity 23 is chemically N-[4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonyl]-4-(5-methyl-3-phenyl-4-isoxazolyl)benzenesulfonamide. It is also known as Valdecoxib Dimer. Parecoxib Impurity 23 is supplied with detailed characterization data compliant with regulatory guideline. Parecoxib Impurity 23 can be used for the analytical method development, method validation (AMV), Quality Controlled (QC) application for Abbreviated New Drug Application (ANDA) or during commercial production of Parecoxib.

The product can be used as reference standards and further traceability against pharmacopeial standards (USP or EP) can be provided based on feasibility. SynZeal products are for analytical purpose only and not for human use.