105301-23-3 2,2'-(2-Quinoxalinylmethylene)bis(3-ethyl-4-methoxyphenol) N,N'-dioxide 2-(Bis(1'-hydroxy-3'-ethyl-4'-methoxyphenyl-2')methyl)quinoxaline-1,4-dioxide Phenol, 2,2'-(2-quinoxalinylmethylene)bis(3-ethyl-4-methoxy-, N,N'-dioxide