Clonitazene

Clonitazene

Salts []
Clonitazene hydrochloride

Molecular structure via molpic based on CDK

Rotamer []

Conformer structure via 3Dmol.js

Physical properties []
Molecular mass	386.9 g/mol ^[1]
Predicted LogP	4.6 ^[1]

Structural Identifiers []
Molecular formula	C₂₀H₂₃ClN₄O₂ ^[1]
IUPAC name	2-[2-[(4-chlorophenyl)methyl]-5-nitrobenzimidazol-1-yl]-N,N-diethylethanamine ^[1]
SMILES	CCN(CC)CCN1C2=C(C=C(C=C2)[N+](=O)[O-])N=C1CC3=CC=C(C=C3)Cl ^[1]
InChI	InChI=1S/C20H23ClN4O2/c1-3-23(4-2)11-12-24-19-10-9-17(25(26)27)14-18(19)22-20(24)13-15-5-7-16(21)8-6-15/h5-10,14H,3-4,11-13H2,1-2H3 ^[1]
InChIKey	GPZLDQAEBHTMPG-UHFFFAOYSA-N ^[1]

Clonitazene (also known as Clonitaceno, Clobedolum, Clonitazenum, Clonitazinum, Acscn-9612, IDS-NC-002, C-193901, 2-(p-Chlorobenzyl)-1-(2-diethylaminoethyl)-5-nitrobenzimidazole, C 193901 or 2-(p-Chlorobenzyl)-1-(2-(diethylamino)ethyl)-5-nitrobenzimidazole) is a opioid substance of the nitazene class.

Chemistry

Salts []

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

Stereochemistry []

Clonitazene is a achiral mixture.

Subjective effects []

class / Opioid

Physical effects
Constipation Cough suppression Difficulty urinating Itchiness Nausea Pain relief Pupil constriction Respiratory depression Sedation Stomach cramp

Cognitive effects
Anxiety suppression Cognitive euphoria Compulsive redosing Increased music appreciation Thought deceleration

Visual effects
Double vision

Legal status []

Brazil: Clonitazene is a A1 substance.^[3]
Canada: Clonitazene is a Schedule I substance.
United Kingdom: Clonitazene is a Class A substance.
United States: Clonitazene is a Schedule I under the "Controlled Substances Act (CSA)".
Germany: Clonitazene is a Anlage I substance.

External links []

References []

National Center for Biotechnology Information. PubChem Compound Summary for CID 62528, Clonitazene. Accessed June 7, 2026. https://pubchem.ncbi.nlm.nih.gov/compound/62528
U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Clonitazene. UNII: S90R21A2V2. Global Substance Registration System. Accessed June 7, 2026. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/S90R21A2V2
Anvisa. RDC Nº 784 - Listas de Substâncias Entorpecentes, Psicotrópicas, Precursoras e Outras sob Controle Especial. Diário Oficial da União. March 31, 2023. Accessed June 7, 2026. https://www.in.gov.br/en/web/dou/-/resolucao-rdc-n-784-de-31-de-marco-de-2023-474904992

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