英文别名Edaravone Impurity 4; Edaravone Impurity 23; Edaravone-1; Edaravone Dimer; 3,3'-Dimethyl-1,1'-diphenyl[4,4'-bi-1H-pyrazole]-5,5'-diol; [4,4'-Bi-1H-pyrazole]-5,5'-diol, 3,3'-dimethyl-1,1'-diphenyl-; Edaravone Impurities557; 5-methyl-4-(5-methyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)-2-phenyl-1H-pyrazol-3-one; 3,3'-Dimethyl-1,1'-diphenyl-4,4'-bi(5-pyrazolone); Bis(3-methyl-1-phenyl-5-pyrazolone) 
