1,6-Hexamethylenebis(3,5-tert-butyl-4-hydroxyhydrocinnamate) 1,6-Hexanediyl 3,5-bis(1,1-dimethylethyl)-4-hydroxybenzenepropanoate 189251-73-8 35074-77-2 Benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-, 1,6-hexanediyl ester EINECS 252-346-9 Hexamethylene bis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate) Hexamethylene bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) Irganox 249 Irganox 259