1,3-Benzenedicarboxamide, 5,5'-((1,2-dioxo-1,2-ethanediyl)diimino)bis(N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-N,N'-dimethyl- 65822-11-9 ZK 74 435 ZK 74,435