Iopromide EP Impurity E

Chemical Name: 3-[[3-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodo-5-[(methoxyacetyl)amino]benzoyl]methylamino]-2-hydroxypropyl 3-[(2,3-dihydroxypropyl)carbamoyl]-2,4,6-triiodo-5-[(methoxyacetyl)amino]benzoate (as per EP)

Synonym: (3R,6R)-3,6-bis((aminooxy)methyl)piperazine-2,5-dione

Smile: IC1=C(C(I)=C(C(NCC(O)CO)=O)C(I)=C1C(OCC(O)CN(C)C(C2=C(I)C(C(NCC(O)CO)=O)=C(I)C(NC(COC)=O)=C2I)=O)=O)NC(COC)=O