What does cannabinol mean?
Cannabinol, commonly abbreviated as CBN, is a chemical compound belonging to the class of cannabinoids — the group of active substances found in the cannabis plant. Unlike the better-known compound THC, which produces the plant's characteristic intoxicating effects, cannabinol is only mildly psychoactive and arises chiefly as a breakdown product: as cannabis ages, or when it is exposed to air and light over time, its THC slowly oxidizes into cannabinol. For this reason, laboratory analyses of old or poorly stored cannabis typically show elevated levels of the compound. The word appears almost exclusively in technical registers — chemistry papers, pharmacological research, forensic reports, and regulatory documents — where it is usually named alongside other cannabinoids such as THC and cannabidiol. Researchers have investigated cannabinol for possible therapeutic properties, including potential sedative effects, though such claims remain under study rather than established medical fact. For general readers, the word is most useful as a precise scientific label within discussions of cannabis chemistry.
nounA mildly psychoactive cannabinoid obtained from cannabis, formed by the oxidation or degradation of tetrahydrocannabinol (THC).
- The specific mildly psychoactive compound CBN, a degradation product of THC found in aged cannabis.
"As cannabis ages, its THC gradually converts into cannabinol, which is why old samples test high in CBN."
"Laboratory analysis of the seized material showed unusually high levels of cannabinol."
"Researchers are studying whether cannabinol has useful sedative properties."
Rarely used; the plural occurs mainly when referring to different molecular forms or individual molecules of the compound in analytical contexts.
"Trace cannabinols were detected alongside the dominant THC fraction."
Cannabinol is essentially what THC turns into when cannabis goes stale — it was isolated so early that scientists identified it before they understood THC.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does cannabinol come from?
The word cannabinol was coined in the nineteenth century from cannabis, the Latin name for the hemp plant, which itself derives from the Greek kannabis. The suffix -ol marks it chemically as an alcohol-type compound, following the naming conventions of organic chemistry. It shares this root with related compound names such as cannabinoid, cannabidiol, and tetrahydrocannabinol, all built on the same cannabis stem. The compound was among the earliest cannabis constituents to be isolated and characterized by chemists.
How cannabinol is actually used
A technical term used mainly in chemistry, pharmacology, and discussions of cannabis; in everyday contexts it is usually referred to by its abbreviation CBN. It is a countable noun when referring to molecules but more often treated as an uncountable mass noun for the substance generally.
Easily confused with cannabinol
Cannabinoid is the general term for any of the chemical compounds found in cannabis (such as THC, CBD, and cannabinol), whereas cannabinol refers to one specific compound within that group.
Cannabis is the plant itself, while cannabinol is a single chemical compound derived from it.