Synonyms:
hp-136 ; xylyl dibutylbenzofuranone ; 5,7-di-tert-butyl-3-(3,4-dimethylphenyl)-3h-benzofuran-2-one ; 5,7-di-tert.butyl-3-(2,3.dimethyl-phenyl)-3hbenzofuran-2-one ; antioxidant hp-136 ; 2(3h)-benzofuranone, 5,7-bis(1,1-dimethylethyl)-3-hydroxy-, reaction products with o-xylene ; 2(3h)-benzofuranone,5,7-bis(1,1-dimethylethyl)-3-hydroxy-, reaction products with o-xylene ; reaction product of 5,7-bis(1,1-dimetylethyl)-3-hydroxy-2(3h)-benzofuranone with o-xylene ; 3,4-dibutyl-5-(2,4-dimethylphenyl)benzofuran-2(3h)-one