Cadinene
A minor sesquiterpene with woodland notes and limited cannabis presence.
Cadinene is real chemistry—a sesquiterpene found across nature and sometimes in cannabis—but it's a supporting player, not a hero. You won't see it dominating any strain's profile. Claims that it's sedating or drives specific effects? Not backed by human trials. What we know comes from petri dishes and plant biology. It contributes background woodiness, nothing more.
What it is
Cadinene refers to a group of closely related bicyclic sesquiterpene isomers with the molecular formula C₁₅H₂₄. The most commonly discussed variants are δ-cadinene (delta-cadinene) and γ-cadinene (gamma-cadinene), though α- and ε-forms also exist [1]. Like other sesquiterpenes, cadinenes are built from three isoprene units and are heavier and less volatile than monoterpenes such as Myrcene or Pinene.
δ-Cadinene is biosynthesized in plants via the enzyme δ-cadinene synthase, which cyclizes farnesyl diphosphate (FPP). This enzyme has been characterized in detail in cotton (Gossypium), where δ-cadinene is a precursor to the defensive compound gossypol [2] Strong evidence. The terpene family takes its name from Juniperus oxycedrus, the cade juniper, whose oil is rich in cadinene isomers.
Where it's found
Cadinenes are widespread across the plant kingdom as minor or trace constituents. Notable natural sources include:
- Juniper and cade oil (Juniperus spp.) — the namesake source [1]
- Cedarwood and cypress essential oils
- Cubeb pepper (Piper cubeba) and black pepper
- Hops (Humulus lupulus), a botanical relative of cannabis [3]
- Cotton plants, where δ-cadinene serves a defensive role [2]
In cannabis
Cadinene typically appears as a minor sesquiterpene in cannabis. When labs report it at all, concentrations are usually in the trace-to-0.1% range of total terpenes, well below dominant sesquiterpenes like β-caryophyllene or humulene Strong evidence. It is not a defining terpene of any commercially recognized cannabis cultivar.
Aroma and flavor
Cadinene's odor is described in fragrance literature as woody, herbal, and faintly spicy, with nuances reminiscent of juniper and cedarwood [1]. δ-Cadinene specifically contributes to the characteristic scent profile of cubeb pepper and the dry, resinous notes in cedarwood oils.
In cannabis, where cadinene occurs only in trace amounts, it likely contributes background woodiness or forest-floor dryness rather than a recognizable or dominant top note. Human odor detection thresholds for the various cadinene isomers have not been systematically characterized in published scientific literature No data.
Effects research — what we actually know
There are no published human clinical trials on inhaled or ingested cadinene. Every effect claim rests on in vitro assays, animal models, or studies of cadinene-rich essential oils rather than the isolated compound.
What preclinical work shows:
Antimicrobial activity: δ-cadinene and cadinene-rich essential oils have demonstrated activity against various bacteria and fungi in cell culture and microbial assays Weak / limited. This is real chemistry but does not directly translate to therapeutic effects in humans at achievable intake levels.
Anti-inflammatory signals in cells: Some cell-culture experiments report that δ-cadinene reduces inflammatory markers, but these typically used direct exposure at concentrations not achievable through cannabis use Weak / limited. Cell-culture findings rarely predict human efficacy.
Phytoalexin / defensive role in plants: Well documented in cotton and other plants [2] Strong evidence. This is plant biology, not human pharmacology.
Claims without evidence:
Online claims that cadinene is sedating, anxiolytic, or drives specific cannabis effects are not supported by direct evidence in humans No data. The entourage effect hypothesis—that terpenes work synergistically with cannabinoids—remains an area of active research but cadinene has not been a focus of those studies [6] Disputed.
Strains dominant in cadinene
There are no widely recognized cannabis cultivars marketed or reliably characterized as cadinene-dominant. When present, cadinene is a minor sesquiterpene that appears alongside larger fractions of β-caryophyllene, humulene, and myrcene. Some hashplant and historical landrace samples report slightly elevated cadinene content in isolated analyses, but lab-to-lab variability is high and the compound is not consistently included on standard commercial terpene panels Weak / limited.
If a budtender claims a strain is "high in cadinene," ask to see the certificate of analysis—and verify that cadinene was even on the analyte list.
Related terpenes
Cadinene sits within the broader family of bicyclic sesquiterpenes. Chemically and biosynthetically related compounds include:
- β-Caryophyllene — the dominant sesquiterpene in most cannabis strains
- Humulene — α-humulene, often co-occurring with caryophyllene
- Calamenene — an aromatic dehydrogenation product of cadinene
- Cadinol — the hydroxylated alcohol form, found in certain essential oils
- Cubebene — another C₁₅H₂₄ sesquiterpene from cubeb pepper
- Gamma-Selinene — a related C₁₅H₂₄ sesquiterpene isomer
All share the C₁₅H₂₄ sesquiterpene scaffold derived from farnesyl diphosphate but differ in cyclization patterns and stereochemistry [1].
Sources
- Book Breitmaier, E. (2006). Terpenes: Flavors, Fragrances, Pharmaca, Pheromones. Wiley-VCH.
- Peer-reviewed Chen, X.-Y., Chen, Y., Heinstein, P., & Davisson, V. J. (1995). Cloning, expression, and characterization of (+)-δ-cadinene synthase: a catalyst for cotton phytoalexin biosynthesis. Archives of Biochemistry and Biophysics, 324(2), 255–266.
- Peer-reviewed Eyres, G., Marriott, P. J., & Dufour, J.-P. (2007). The combination of gas chromatography–olfactometry and multidimensional gas chromatography for the characterisation of essential oils. Journal of Chromatography A, 1150(1–2), 70–77.
- Peer-reviewed Hui, L. M., Zhao, G. D., & Zhao, J. J. (2015). δ-Cadinene inhibits the growth of ovarian cancer cells via caspase-dependent apoptosis and cell cycle arrest. International Journal of Clinical and Experimental Pathology, 8(6), 6046–6056.
- Peer-reviewed Russo, E. B. (2011). Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects. British Journal of Pharmacology, 163(7), 1344–1364.
- Peer-reviewed Booth, J. K., & Bohlmann, J. (2019). Terpenes in Cannabis sativa – From plant genome to humans. Plant Science, 284, 67–72.
How this page was made
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Related
- Farnesene — A sesquiterpene found at trace levels in cannabis with poorly understood human effects.
- Gamma-Selinene — A trace sesquiterpene with minimal research and no evidence of distinct cannabis effects.
- Myrcene — Earthy monoterpene abundant in cannabis, hops, and mango—effects in humans remain unproven...
- Pinene — A volatile pine-scented monoterpene with documented lab activity but unproven cognitive ef...