2-iodomelatonin 2-iodomelatonin 2-iodomelatonin is a melatonin analog used as a radiolabelled ligand for the melatonin receptors, mt1, mt2, and mt3. it acts as a full agonist at both mt1 and mt2 receptors. 2-iodomelatoninidentifiers iupac name n-acetamide cas number93515-00-5 ypubchem cid115348iuphar/bps1343drugbankdb08190chemspider103191unii2q5tz5754achebichebi:109558chemblchembl289233comptox dashboard (epa)dtxsid30239462 chemical and physical dataformulac13h15in2o2molar mass358.179 g·mol−13d model (jsmol)interactive image smiles cc(=o)nccc1=c(nc2=c1c=c(c=c2)oc)i inchi inchi=1s/c13h15in2o2/c1-8(17)15-6-5-10-11-7-9(18-2)3-4-12(11)16-13(10)14/h3-4,7,16h,5-6h2,1-2h3,(h,15,17)key:fjddsmsdzhurbj-uhfffaoysa-n