Phenol,4,4'-[3-[[6-[[3-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]-1-[2-[3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl]ethyl]propyl]amino]hexyl]amino]-1,5-pentanediyl]bis[2,6-bis(1,1-dimethylethyl)-