The molecule is a dicarboxylic acid anion that is the conjugate base of adipiodone arising from deprotonation of the two carboxy groups; major species at pH 7.3. It is a conjugate base of an adipiodone.
3-[[6-(3-carboxylato-2,4,6-triiodoanilino)-6-oxohexanoyl]amino]-2,4,6-triiodobenzoate