Isotocyanozene
Isotocyanozene (5-cyano-isotodesnitazene) is a benzimidazole opioid analogue of isotonitazene which has been sold as a designer drug. It was first characterised by the drug checking service CanTEST, in September 2025 as an expected 'opioid' sample, and then later as an expected 'benzodiazepine' sample.