3'-Ethoxy-N-ethyl-2',4',6'-triiodosuccinanilic acid 37938-74-2 Butanoic acid, 4-((3-ethoxy-2,4,6-triiodophenyl)ethylamino)-4-oxo- (9CI) Succinanilic acid, 3'-ethoxy-N-ethyl-2',4',6'-triiodo-