Anodyne

Metonitazene
Metonitazene
Molecular structure via molpic based on CDK
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Conformer structure via JSmol
Physical properties
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382.5 g/mol [1]
3.9 [1]
Structural Identifiers
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C21H26N4O3 [1]
N,N-diethyl-2-[2-[(4-methoxyphenyl)methyl]-5-nitrobenzimidazol-1-yl]ethanamine [1]
CCN(CC)CCN1C2=C(C=C(C=C2)[N+](=O)[O-])N=C1CC3=CC=C(C=C3)OC [1]
InChI=1S/C21H26N4O3/c1-4-23(5-2)12-13-24-20-11-8-17(25(26)27)15-19(20)22-21(24)14-16-6-9-18(28-3)10-7-16/h6-11,15H,4-5,12-14H2,1-3H3 [1]
InChIKeyHNGZTLMRQTVPBH-UHFFFAOYSA-N [1]

Metonitazene

Metonitazene (also known as Benzimidazole, 1-(2-(diethylamino)ethyl)-2-(p-methoxybenzyl)-5-nitro-, 1H-Benzimidazole-1-ethanamine, N,N-diethyl-2-((4-methoxyphenyl)methyl)-5-nitro-, N,N-Diethyl-2-((4-methoxyphenyl)methyl)-5-nitro-1H-benzimidazole-1-ethanamine, N,N-diethyl-2-[(4-methoxyphenyl)methyl]-5-nitro-1H-benzimidazole-1-ethanamine, N,N-diethyl-2-(2-((4-methoxyphenyl)methyl)-5-nitrobenzimidazol-1-yl)ethanamine, PAA68051, C22727, 1-(Diethylamino)ethyl-2-(4-methoxybenzyl)-5-nitrobenzimidazole or N,N-diethyl-2-(2-(4-methoxybenzyl)-5-nitro-1H-benzimidazol-1-yl)ethan-1-amine) is a opioid substance of the benzimidazole class.

Chemistry

Salts []

Metonitazene is typically found in the form of its hydrochloride salt.

 []

Metonitazene is a achiral mixture

Experience reports []

There are currently 2 experience reports involving metonitazene on OpenErowid:

Legal status []

  • Brazil: Metonitazene is a F1 substance.
  • Germany: Metonitazene is a Anlage II substance.
  • United Kingdom: Metonitazene is a Class A substance.
  • United States: Metonitazene is a Schedule I under the "Controlled Substances Act (CSA)".

References []

  1. National Center for Biotechnology Information. PubChem Compound Summary for CID 53316366, Metonitazene. Accessed June 26, 2025. https://pubchem.ncbi.nlm.nih.gov/compound/53316366

  2. U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Metonitazene. UNII: A7FF4K4CWB. Global Substance Registration System. Accessed June 26, 2025. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/A7FF4K4CWB