protonitazene protonitazene protonitazene is a benzimidazole derivative with potent opioid effects which has been sold over the internet as a designer drug since around 2021, and has been identified in various european countries, as well as canada, the usa and australia. it has been linked to numerous cases of drug overdose, and is a schedule i drug in the usa. protonitazenelegal statuslegal status de: npsg (industrial and scientific use only) uk: under psychoactive substances act us: schedule i identifiers iupac name n,n-diethyl-2-benzimidazol-1-yl]ethanamine cas number95958-84-2pubchem cid156589001unii4a6rzq7m2vchemical and physical dataformulac23h30n4o3molar mass410.518 g·mol−13d model (jsmol)interactive image smiles cccoc1=cc=c(c=c1)cc2=nc3=c(n2ccn(cc)cc)c=cc(=c3)(=o) inchi inchi=1s/c23h30n4o3/c1-4-15-30-20-10-7-18(8-11-20)16-23-24-21-17-19(27(28)29)9-12-22(21)26(23)14-13-25(5-2)6-3/h7-12,17h,4-6,13-16h2,1-3h3key:sjhujfhoxydsjy-uhfffaoysa-n