34737-07-0 4-((Ethylamino)carbonyl)-2,3,5,6-tetraiodobenzoic acid Benzoic acid, 4-((ethylamino)carbonyl)-2,3,5,6-tetraiodo- Terephthalamic acid, N-ethyl-2,3,5,6-tetraiodo Tetrajodterephthalsaure-mono-aethylamid [German]