Synonyms: 2,2'-(1,6-Hexanediyl)bis(1,3-dioxo-1,3-dihydro-2H-isoindole-5-carboxylic acid);2,2'-Hexamethylenebis(1,3-dihydro-1,3-dioxo-2H-isoindole-5-carboxylic acid);2,2'-Hexamethylenebis(1,3-dioxo-1,3-dihydro-2H-isoindole-5-carboxylic acid);2,2'-Hexamethylenebis(1,3-dioxo-5-isoindolinecarboxylic acid);2,2'-Hexamethylenebis(1,3-dioxoisoindoline-5-carboxylic acid);N,N'-(1,6-Hexanediyl)bis(4-carboxyphthalimide)