ioglycamic acid ioglycamic acid ioglycamic acid (trade name biligram) is a pharmaceutical drug that was used as an iodinated contrast medium for x-ray imaging of the gall bladder. ioglycamic acidclinical datatrade namesbiligramatc codev08ac03 (who) identifiers iupac name 3-(2-acetamido)-2,4,6-triiodobenzoic acid cas number2618-25-9pubchem cid17477drugbankdb13741chemspider16526uniiet36gpp4t7chemblchembl2106372comptox dashboard (epa)dtxsid50180801 echa infocard100.018.227 chemical and physical dataformulac18h10i6n2o7molar mass1127.712 g·mol−13d model (jsmol)interactive image smiles o=c(nc1c(i)c(c(i)cc1i)c(=o)o)cocc(=o)nc2c(i)c(c(=o)o)c(i)cc2i