Cannabinol (CBN) is a weak psychoactive cannabinoid found only in trace amounts in Cannabis sativa and Cannabis indica. It is mostly a metabolite of tetrahydrocannabinol (THC). CBN acts as a weak agonist of CB1 receptors but has a higher affinity to CB2 receptors, with lower affinities in comparison to THC. Because it is a somewhat selective CB2 receptor agonist, it is used experimentally as an immunosuppressant.
CBN is not scheduled by the United Nations' Convention on Psychotropic Substances.
CBN is not scheduled at the federal level in the United States and is therefore legal to posses, buy, and sell. It is possible that CBN could legally be considered an analog (of THC). If so, sales or possession intended for human consumption could be prosecuted under the Federal Analogue Act.