Iodixanol Dimer Impurity

Chemical Name: 5-(N-(3-(N-(3,5-bis((2,3-dihydroxypropyl)carbamoyl)-2,4,6-triiodophenyl)acetamido)-2-hydroxypropyl)acetamido)-N1-(3-(2,3-dihydroxypropoxy)-2-hydroxypropyl)-N3-(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide

Smile: O=C(NCC(O)COCC(O)CO)C1=C(C(C(NCC(O)CO)=O)=C(C(N(CC(O)CN(C2=C(I)C(C(NCC(O)CO)=O)=C(I)C(C(NCC(O)CO)=O)=C2I)C(C)=O)C(C)=O)=C1I)I)I