1,3-Benzenedicarboxamide, 5,5'-((2-hydroxy-1,3-propanediyl)bis(acetylimino))bis(N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo)-, (16alpha)-
1,3-Benzenedicarboxamide, 5,5'-((2-hydroxy-1,3-propanediyl)bis(acetylimino))bis(N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-