ATH standard;5-Amino-N-(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide Acid;3-AMino-5-[[(2,3-dihydroxypropyl)aMino]carbonyl]-2,4,6-triiodo-benzoic Acid;PU-H71;3-amino-5-(2,3-dihydroxypropylcarbamoyl)-2,4,6-triiodobenzoic acid;5-AMino-N-(2,3-dihydroxyproOpen