3,5-Di-tert-butyl-1,2-benzoquinone3383-21-9100 % similar 3,3',5,5'-Tetra-tert-butyl-4,4'-dibenzoquinone2455-14-354 % 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