26280-73-9 3,3'-(Heptanedioyldiimino)bis(5-(acetamidomethyl)-2,4,6-triiodobenzoic acid) BENZOIC ACID, 3,3'-(PIMELOYLDIIMINO)BIS(5-(ACETAMIDOMETHYL)-2,4,6-TRIIODO- BRN 2800649