for the following products
5-Amino-N,N-bis-(2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide | 5-Amino-n1,n3-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide and 5-Amino-N,N'-bis-(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide
