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Cannabidiolic acid
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| Names | |
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| Preferred IUPAC name
(1′R,2′R)-2,6-Dihydroxy-5′-methyl-4-pentyl-2′-(prop-1-en-2-yl)-1′,2′,3′,4′-tetrahydro[1,1′-biphenyl]-3-carboxylic acid | |
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3D model (JSmol)
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PubChem CID
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| Properties | |
| C22H30O4 | |
| Molar mass | 358.478 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Cannabidiolic acid (CBDA), is a cannabinoid produced in cannabis plants.[1] It is the precursor to cannabidiol (CBD). It is most abundant in the glandular trichomes on the female seedless flowers or more accurately infructescence often colloquially referred to as buds or flowers.[2]
Biosynthesis
[edit]Cannabidiolic acid is a natural product sesquiterpene biosynthesized in cannabis via Cannabidiolic acid synthase from the conjugation of olivetolic acid and cannabigerolic acid.[3]
Decarboxylation
[edit]CBDA is the chemical precursor to cannabidiol (CBD). Through the process of decarboxylation, cannabidiol is derived through loss of the carbon and two oxygen atoms that make up the carboxylic acid moeity on the aromatic ring.
References
[edit]- ^ Takeda, Shuso (2013). "[Medicinal chemistry and pharmacology focused on cannabidiol, a major component of the fiber-type cannabis]". Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan. 133 (10): 1093–1101. doi:10.1248/yakushi.13-00196. ISSN 1347-5231. PMID 24088353.
- ^ Livingston, Samuel J.; Quilichini, Teagen D.; Booth, Judith K.; Wong, Darren C. J.; Rensing, Kim H.; Laflamme‐Yonkman, Jessica; Castellarin, Simone D.; Bohlmann, Joerg; Page, Jonathan E.; Samuels, A. Lacey (2020). "Cannabis glandular trichomes alter morphology and metabolite content during flower maturation". The Plant Journal. 101 (1): 37–56. doi:10.1111/tpj.14516. ISSN 1365-313X. PMID 31469934.
- ^ PubChem. "Cannabidiolic acid". pubchem.ncbi.nlm.nih.gov. Retrieved 2019-12-23.
Cannabidiolic acid
View on Grokipediafrom Grokipedia
Cannabidiolic acid (CBDA), also known as (‒)-cannabidiolic acid, is a naturally occurring phytocannabinoid and the primary acidic precursor to cannabidiol (CBD) in Cannabis sativa L., characterized by its non-psychoactive properties.[1] With the molecular formula C22H30O4 and a molecular weight of 358.48 g/mol, CBDA is a 22-carbon terpenophenolic compound featuring a resorcinol core linked to a monoterpene unit and a pentyl side chain, as described by its IUPAC name: 2,4-dihydroxy-3-[(1R,6R)-3-methyl-6-(prop-1-en-2-yl)cyclohex-2-en-1-yl]-6-pentylbenzoic acid.[2] It exhibits moderate lipophilicity (cLogP 6.43), good oral bioavailability, and stability under physiological conditions, decarboxylating to CBD only upon heating above 100°C.[1]
CBDA is predominantly found in industrial hemp varieties (C. sativa fiber and seed-oil types), where it constitutes a major cannabinoid in mature female inflorescences, leaves, and especially pollen.[1] Biosynthetically, it arises from the oxidative cyclization of cannabigerolic acid (CBGA), the central precursor in the cannabinoid pathway, catalyzed by the enzyme cannabidiolic-acid synthase (CBDAS), a flavin-dependent oxidocyclase expressed in the secretory cavities of glandular trichomes.[3] This enzyme shares high sequence homology (over 70% identity) with tetrahydrocannabinolic-acid synthase (THCAS) but directs the reaction toward the cannabidiol scaffold rather than the psychoactive tetrahydrocannabinol pathway, determining the chemotype of fiber hemp.[3] The upstream pathway involves polyketide synthase-mediated formation of olivetolic acid from hexanoyl-CoA and malonyl-CoA, followed by prenylation with geranyl pyrophosphate to yield CBGA.[1]
Pharmacologically, CBDA demonstrates a range of bioactive effects distinct from decarboxylated CBD, including potent anti-inflammatory activity through selective inhibition of cyclooxygenase-2 (COX-2) with an IC50 of 2.7 μM (ninefold selectivity over COX-1), surpassing many conventional NSAIDs.[4] It also acts as an agonist at serotonin 5-HT1A receptors, exhibiting anti-emetic properties at doses as low as 0.05 mg/kg in animal models of motion-induced nausea, reducing vomiting incidence by up to 80% and delaying onset more effectively than CBD.[1] Additional preclinical evidence supports anticonvulsant effects in Dravet syndrome models, anxiolytic activity via prefrontal cortex modulation at 0.1 μg/kg, and anti-migratory effects on breast cancer cells (e.g., MDA-MB-231) by downregulating COX-2, c-Fos, and AP-1 signaling.[1] Recent studies as of 2025 have further explored neuroprotective effects in motor neuron disease models and anti-depressant-like activity in rats.[5][6] Despite these promising attributes, CBDA remains understudied compared to CBD, with ongoing research exploring its therapeutic potential in inflammation, nausea, epilepsy, and oncology, often enhanced in entourage effects with other cannabinoids.[1]
