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CBN (Cannabinol): Specs, Evidence, Formation & Infusion

Cannabinoid index · Mildly intoxicating

Mildly psychoactiveNot approvedWADA-prohibitedLiposolubile

CBN (cannabinol) is a mild cannabinoid that forms when THC ages and oxidizes, not from a fresh acid precursor. It is only weakly psychoactive, roughly a tenth the potency of THC, and builds up in older, air-exposed cannabis. It is widely marketed as a sleep aid, but the human evidence for that is limited.

Specifica
Composto
CBN (Cannabinol)
Origine
Oxidative breakdown of THC (not a normal biosynthetic product)
Classificazione
Phytocannabinoid (THC degradation product)
Numero CAS
521-35-7
Formula molecolare
C21H26O2
Peso molecolare
310.43 g/mol
Inebriante
Mildly, about a tenth the potency of THC
Solubilità
Liposolubile; scarsamente idrosolubile

Formation & infusion

How it forms
THC oxidizes into CBN with time, heat, light and air
Not a decarb
Unlike THC or CBD, CBN is not activated from an acid; it is what aged THC becomes
Higher in
Older, poorly stored flower; overheated material
Infusione
Fat-soluble, so once present it infuses into oils and butter like other cannabinoids

Overheating during decarb is one way THC drifts toward CBN, which is why gentle heat matters. See the tabella delle temperature di decarbossilazione e THC.

Evidenze & stato
Stato di approvazione
Not approved. Not a component of any approved drug.
Stato in Europa
Not authorised. No monograph.
Supporto più solido
Animal and cell work; the sedation claim leans on older THC-combined studies
Sport agonistico
Prohibited in-competition by WADA (cannabinoids, CBD excepted).
Lavoro di laboratorioStudi sugli animaliHuman studiesIndicazione approvata

Reviewed 2026-09-04. Not legal or medical advice.

Cosa ha esaminato la letteratura pubblicata

CBN’s chemistry as an oxidation product of THC is well described, and it is used as a marker of cannabis age and degradation. Its most-discussed property, sedation, comes largely from older studies where CBN was given alongside THC, plus a great deal of marketing. Controlled human trials of CBN on its own are few, and results are mixed.

Cosa è accertato e cosa no

Accertato: that CBN forms from THC as cannabis ages, is only mildly psychoactive, and serves as a degradation marker. Non accertato: that CBN alone is a reliable sleep aid; the evidence is limited and often confounded by THC. Products sold on the sleep claim run ahead of the data. This page describes the compound and summarises research; it is not medical advice.

Fonti

  • Russo EB. Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. Br J Pharmacol. 2011;163:1344-1364. PubMed
  • Reviews of cannabinol pharmacology and cannabis degradation. PubMed
  • Registered human studies for cannabinol. ClinicalTrials.gov
  • World Anti-Doping Agency. Prohibited List (cannabinoids, CBD excepted). wada-ama.org

Domande frequenti

What is CBN?

CBN, or cannabinol, is a mild cannabinoid that forms when THC ages and oxidizes. It is only weakly psychoactive and is found mostly in older, air-exposed cannabis.

Will CBN get you high?

Barely. CBN is roughly a tenth as psychoactive as THC, so on its own it produces only a very faint effect at normal doses.

Does CBN really help you sleep?

The evidence is limited. Much of CBN’s sleepy reputation comes from studies where it was paired with THC; controlled trials on CBN alone are few and mixed.

Parte del indice dei cannabinoidi. See also the precursor cannabinoid, CBG.

Educational information about a compound. Not medical advice or guidance on use.

Questo articolo è solo a scopo educativo. Segui sempre le leggi locali riguardo la preparazione e l'uso della cannabis.

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