3,3'-(Trimethylenebis(oxyethylenecarbonylimino))bis(2,4,6-triiodobenzoic acid) 51134-94-2 BENZOIC ACID, 3,3'-(TRIMETHYLENEBIS(OXYETHYLENECARBONYLIMINO))BIS(2,4,6-TRIIODO- BRN 2800019