Synonyms: Phosphorousacid,(1-methyl-1-propanyl-3-ylidene)tris[2-(1,1-dimethylethyl)-5-methyl-4,1-phenylene]hexatridecyl ester (9CI); Phosphorous acid, ditridecyl ester, triester with4,4',4''-(1-methyl-1-propanyl-3-ylidene)tris[6-tert-butyl-m-cresol] (7CI);1,1,3-Tris(2-methyl-4-ditridecylphosphito-5-tert-butylphenyl)butane;1,1,3-Tris[2-methyl-4-(ditridecyl phosphite)-5-tert-butylphenyl]butane; ADKStab 522A; Antioxidant F; Antioxidant F (ester); Hexatridecyl1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane triphosphite; Mark 522A