100700-23-0 2-((4-(3-Acetamido-2,4,6-triiodophenoxy)butoxy)methyl)butyric acid sodium salt BUTYRIC ACID, 2-((4-(3-ACETAMIDO-2,4,6-TRIIODOPHENOXY)BUTOXY)METHYL)-, SODIUM SA Butyric acid, 2-((4-(3-acetamido-2,4,6-triiodophenoxy)butoxy)methyl)-, sodium salt