Synonyms: p-Tolyloxy,2,6-di-tert-butyl-a-(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)- (6CI,7CI,8CI);2,6-Di-tert-butyl-a-(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadien-1-ylidene)-p-tolyloxy;Coppinger's radical; Galvinoxy; Galvinoxyl; Galvinoxyl free radical; Galvinoxylradical