2-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)propane-2-sulfonic acid, sodium salt; Edaravone P3;Edaravone iMpurity P3;Edaravone P3 Impurity;2-(5-hydroxy-3-methyl-1-phenyl-1Hpyrazol-4-yl)propane-2-sulfonic acid;2-(3-Methyl-5-oxo-1-phenyl-4,5-dihydro-1H-pyrazol-4-yl)propane-2-sulfonic acid;4,5-dihydro-a,a,3-triMethyl-5-oxo-1-phenyl- 1H-Pyrazole-4-Methanesulfonic acid;4,5-Dihydro-alpha,alpha,3-trimethyl-5-oxo-1-phenyl-1H-pyrazole-4-methanesulfonic acid
