CAS NO:51803-78-2 Nimesulide Product Name Nimesulide English Name Nimesulide Chemical Name -; N-(4-nitro-2-phenoxyphenyl)-methanesulfonamide CAS RN 51803-78-2 Molecular Formula C13H12N2O5S Molecular Weight 308.30 Quality Standard CP2010/EP7 Appearance Nimesulide is light yellow crystalline powder, no odor and taste Solubility Nimesulide is easily soluble in acetone, soluble in trichloromethane, slightly soluble in ethyl alcohol, methyl alcohol and ethyl ether, poorly soluble in water Content Nimesulide more than 99.0% pH Value 5.0-7.0 Melting Point 149-152 Centigrade Absorption Coefficient 445-475 Drying Loss not more than 0.5% Residue on Ignition not more than 0.1% Heavy Metal not more than 10ppm Individual Impurity not more than 0.1% Total Impurity not more than 0.5% Use Pharmaceutical APIs, nimesulide is used in non-steroidal anti-inflammatory drugs and antipyretic Packing 25kg/fiber drum keep tighly in dry place, it is available for 3 years