Cannabigerol Clinical data ATC code Identifiers
2-[(2 E)-3,7-Dimethylocta-2,6-dienyl]-5-pentyl-benzene-1,3-diol CAS Number PubChem CID ChemSpider ChEMBL CompTox Dashboard ( EPA) Chemical and physical data Formula C 21 H 32 O 2 Molar mass g·mol 316.485 −1 3D model ( JSmol)
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Cannabigerol ( CBG) is one of more than 120 identified cannabinoid compounds found in the plant genus . Cannabis  Cannabigerol is the non-acidic form of cannabigerolic acid, the parent molecule from which other cannabinoids are synthesized. Cannabigerol is a minor constituent of cannabis.  During growth, most of the cannabigerol is converted into other cannabinoids, primarily  tetrahydrocannabinol (THC) or cannabidiol (CBD), leaving about 1% cannabigerol in the plant.
Biosynthesis of cannabigerol
biosynthesis of cannabigerol begins by loading hexanoyl-CoA onto a polyketide synthase assembly protein and subsequent condensation with three molecules of malonyl-CoA. This  polyketide is cyclized to olivetolic acid via olivetolic acid cyclase, and then prenylated with a ten carbon isoprenoid precursor, geranyl pyrophosphate, using an aromatic prenyltransferase enzyme, geranyl-pyrophosphate—olivetolic acid geranyltransferase, to biosynthesize cannabigerolic acid, which can then be decarboxylated to yield cannabigerol. 
As of 2019
clinical research has been conducted to test the specific effects of cannabigerol in humans.
Cannabigerol is under
laboratory research to determine its pharmacological properties and potential effects in disease conditions.  Contrary to the major  psychoactive cannabinoid THC, cannabigerol antagonizes CB1 receptors and is both an alpha2-adrenoceptor agonist and moderate 5HT1A receptor antagonist.  Cannabigerol displays  CB1 and CB2 binding affinity.  Additionally, cannabigerol has been evaluated in laboratory models of  colitis and neuroinflammation  in a chronic model of multiple sclerosis
Cannabigerol is not scheduled by the UN
Convention on Psychotropic Substances. In the United States, it is not a controlled substance under the Controlled Substances Act as long as it is not produced from the controlled parts of the cannabis plant.
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