European Pharmacopoeia (EP) Reference Standard Synonym(s): 5-[Acetyl[3-[acetyl[3-carbamoyl-5-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodophenyl]amino]-2-hydroxypropyl]amino]- N , N '-bis(2,3-dihydroxypropyl)-2,4,6-triiodobenzene-1,3-dicarboxamide Empirical Formula:...