Synonyms: AVENGE;AVENGE(R);DIFENZOQUAT METHYLSULFATE;1,2-DIMETHYL-3,5-DIPHENYL-1H-PYRAZOLIUM METHYL SULFATE;1,2-dimethyl-3,5-diphenyl-1h-pyrazoliumethylsulfate;1,2-dimethyl-3,5-diphenylpyrazoliummethylsulphate;1H-Pyrazolium,1,2-dimethyl-3,5-diphenyl-,methylsulfate;1H-pyrazolium,1,2-dimethyl-3,5-diphenyl-methylsulfate