4,4'-Ethylen-bis-(2,6-di-tert.-butyl-4-(3,5-di-tert.-butyl-4-hydroxy-phenyl)-cyclohexa-2,5-dienon)

4-(3,5-di-tert-butyl-4-hydroxyphenyl)-4-<2-(3,5-di-tert-butyl-4-hydroxyphenyl)ethyl>-2,6-di-tert-butylcyclohexa-2,5-dien-1-one

2,9-dicyclohexyl-5-(3,5-di-tert-butyl-4-hydroxyphenyl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone

2,9-dicyclohexyl-5,12-bis(3,5-di-tert-butyl-4-hydroxyphenyl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone

4-(diacetylmethylene)-2,6-di-tert-butyl-2,5-cyclohexadien-1-one