3,5-Di-tert-butyl-1,2-benzoquinone3383-21-9100 % similar 4-[3,5-Bis(1,1-dimethylethyl)-4-oxo-2,5-cyclohexadien-1-ylidene]-2,6-bis(1,1-dimethylethyl)-2,5-cyclohexadien-1-one2455-14-354 % similar 2,5-Di-tert-butyl-1,4-benzoquinone2460-77-752 % similar 2,6-Di-tert-butyl-1,4-benzoquinone719-22-252 % similar tert-Butyl-1,4-benzoquinone3602-55-942 % similar 4-Benzylidene-2,6-di-tert-butylcyclohexa-2,5-dienone7078-98-038 % similar