26090-57-3 BENZOIC ACID, 3,3'-(TRIMETHYLENEBIS(OXYETHYLENECARBONYLIMINO))BIS(5-((2-OXO-1-PY Benzoic acid, 3,3'-(trimethylenebis(oxyethylenecarbonylimino))bis(5-((2-oxo-1-pyrrolidinyl)methyl)-2,4,6-triiodo-