3'-Ethoxy-N-methyl-2',4',6'-triiodosuccinanilic acid 37938-65-1 Butanoic acid, 4-((3-ethoxy-2,4,6-triiodophenyl)methylamino)-4-oxo- (9CI) Succinanilic acid, 3'-ethoxy-N-methyl-2',4',6'-triiodo-