N-Desacetyl Amido Amidotrizoic Acid-13C,15N2 is the isotope labelled analog of N-Desacetyl Amido Amidotrizoic Acid (D288385); an impurity in the synthesis of Amidotrizoic Acid (A576800) which is a density gradient reagent for blood cell seperation. Also a diagnostic aid (radiopaque medium).