5,6-dibromo-n-methyltryptamine 5,6-dibromo-n-methyltryptamine 5,6-dibromo-n-methyltryptamine (5,6-dibromo-nmt) is a substituted tryptamine alkaloid that occurs naturally in marine sponges. 5,6-dibromo-n-methyltryptamineclinical dataother names5,6-dibromo-nmtidentifiers iupac name 2-(5,6-dibromo-1h-indol-3-yl)-n-methylethanamine cas number41115-68-8pubchem cid309210chemspider273390comptox dashboard (epa)dtxsid50309237 chemical and physical dataformulac11h12br2n2molar mass332.039 g·mol−13d model (jsmol)interactive image smiles cnccc1cc2cc(br)c(br)cc12 inchi inchi=inchi=1s/c11h12br2n2/c1-14-3-2-7-6-15-11-5-10(13)9(12)4-8(7)11/h4-6,14-15h,2-3h2,1h3key:xyeurtbvgqldgd-uhfffaoysa-n