CAS 109032-22-6: 4-HYDROXY NIMESULIDE

Applications The main metabolite of Nimesulide (N477500). Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Facino, R.M., et al.: Drugs, 46 (Suppl1),15 (1993), Westphal, J., et al.: J. Antimicrob. Chemother., 33, 387 (1994), Castell, J., et al.: Cell Biol. Toxicol., 13, 331 (1997), Georges, H., et al.: Life Sci., 65, 151 (1999), Singla, A.K., et al.: J. Pharm. Pharmacol., 52, 467 (2000),

4'-Hydroxy nimesulide is a reactive metabolite of nimesulide. It is formed by the oxidation of nimesulide and other reactive metabolites, such as 4-hydroxynimesulide and 5-hydroxynimesulide. This metabolite can be detected in urine samples using a spectrophotometric method. The light emission from this metabolite is proportional to the concentration of the drug in urine. The 4'-hydroxy nimesulide has been found to have a matrix effect on clinical studies because it can interfere with the determination of nimesulide in human serum samples. It has also been shown to have an inhibitory effect on monocytes.