Synonyms: 2-((3,5-Bis(1,1-dimethylethyl)-4-hydroxyphenyl)methylene)butanoic acid;beta-Carboxy-beta-ethyl-3,5-di-tert-butyl-4-hydroxystyrene;Butanoic acid, 2-((3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)methylene)-;AC1O67M1;LS-46118;(2E)-2-[(3,5-ditert-butyl-4-hydroxyphenyl)methylidene]butanoic acid;83677-21-8