1-(4-((Methylamino)carbonyl)-2,3,5,6-tetraiodobenzoyl)-L-proline 1-(4-Methylcarbamoyl-2,3,5,6-tetrajod-benzoyl)-pyrrolidin-2-carbonsaure [German] 29820-33-5 BRN 0500772 L-Proline, 1-(4-((methylamino)carbonyl)-2,3,5,6-tetraiodobenzoyl)-