1-(3,5-Bis(ethyl(1-oxopropyl)amino)-2,4,6-triiodobenzoyl)-L-proline 1-(3,5-Bis-(N-aethyl-propionylamino)-2,4,6-trijod-benzoyl)-pyrrolidin-2-carbonsaure [German] 30743-29-4 BRN 0505160 L-Proline, 1-(3,5-bis(ethyl(1-oxopropyl)amino)-2,4,6-triiodobenzoyl)-