iodoxamic acid iodoxamic acid iodoxamic acid (trade name endobil) is an organoiodine compound used as a radiocontrast agent. it features both a high iodine content as well as several hydrophilic groups. iodoxamic acidclinical datatrade namesendobilother names3--3-oxopropoxy]ethoxy]ethoxy]ethoxy]propanoylamino]-2,4,6-triiodobenzoic acid atc codev08ac01 (who) identifiers iupac name 3--2,4,6-triiodobenzoic acid cas number31127-82-9pubchem cid35740drugbankdb13539chemspider32877uniins1y283hw4keggd01312chemblchembl1201324comptox dashboard (epa)dtxsid4057710 echa infocard100.045.875 chemical and physical dataformulac26h26i6n2o10molar mass1287.925 g·mol−13d model (jsmol)interactive image smiles oc(=o)c(c1i)c(i)cc(i)c1nc(=o)ccoccoccoccoccc(=o)nc(c2i)c(i)cc(i)c2c(=o)o