3-Buten-2-one, 4-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-3-methyl- 4-(3,5-Bis(1,1-dimethylethyl)-4-hydroxyphenyl)-3-methyl-3-buten-2-one 83677-18-3 beta-Acetyl-beta-methyl-3,5-di-tert-butyl-4-hydroxystyrene