Synonyms: Phosphonicacid, (3,5-di-tert-butyl-4-hydroxybenzyl)-, dioctadecyl ester (7CI,8CI);Phosphonic acid, [[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]methyl]-,dioctadecyl ester (9CI);Di-n-Octadecyl(3,5-di-tert-butyl-4-hydroxybenzyl)phosphonate;Di-n-octyldecyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate; Dioctadecyl 3,5-di-tert-butyl-4-hydroxybenzylphosphonate;Dioctadecyl 4-hydroxy-3,5-di-tert-butylbenzylphosphonate; Distearyl3,5-di-tert-butyl-4-hydroxybenzyl phosphonate; Irganox 1093; Irganox RA 1093;O,O-Di-n-octadecyl-3,5-di-tert-butyl-4-hydroxybenzylphosphonate