metodesnitazene metodesnitazene metodesnitazene (also known as metazene) is a benzimidazole derivative with opioid effects, though unlike related compounds such as metonitazene and etodesnitazene which are many times more potent, metodesnitazene is only around the same potency as morphine in animal studies. it was proposed by the dea to be placed under legal control in the us in december 2021. metodesnitazenelegal statuslegal status uk: under psychoactive substances act us: schedule i identifiers iupac name n,n-diethyl-2-benzimidazol-1-yl]ethanamine cas number14030-77-4 1071546-40-1 (hcl)pubchem cid26412comptox dashboard (epa)dtxsid80161305 chemical and physical dataformulac21h27n3omolar mass337.467 g·mol−13d model (jsmol)interactive image smiles ccn(cc)ccn1c2=cc=cc=c2n=c1cc3=cc=c(c=c3)oc inchi inchi=1s/c21h27n3o/c1-4-23(5-2)14-15-24-20-9-7-6-8-19(20)22-21(24)16-17-10-12-18(25-3)13-11-17/h6-13h,4-5,14-16h2,1-3h3key:sfnkttxbzxvgoh-uhfffaoysa-n