2-?(3-?Methyl-?5-?oxo-?1-?phenyl-?4,?5-?dihydro-?1h-?pyrazol-?4-?yl)?propane-?2-?sulfonic Acid is an impurity of Edaravone (E335000) which inhibits the disease activity in rheumatoid arthritis. Edaravone can significantly enhance IR flap viability and protect flap vessels, which is related to scavenging oxygen free radicals, reducing the consumption of SOD, reducing the extent of lipid peroxidation and inflammation, and protecting functional structure of vessels in the early stages of reperfusion.
