100700-34-3 2-(2-(3-(N-Methylacetamido)-2,4,6-triiodophenoxy)ethoxy)butyric acid sodium salt BUTYRIC ACID, 2-(2-(3-(N-METHYLACETAMIDO)-2,4,6-TRIIODOPHENOXY)ETHOXY)-, SODIUM Butyric acid, 2-(2-(3-(N-methylacetamido)-2,4,6-triiodophenoxy)ethoxy)-, sodium salt