|Preferred IUPAC name
|Molar mass||360.494 g·mol−1|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Cannabigerolic acid (CBGA) is the acidic form of cannabigerol (CBG). It is a dihydroxybenzoic acid and olivetolic acid in which the hydrogen at position 3 is substituted by a geranyl group. It is a biosynthetic precursor to Delta-9-tetrahydrocannabinol, which is the principal psychoactive constituent of the Cannabis plant. It is also a diterpenoid, a polyketide, a member of resorcinols and a phytocannabinoid. It derives from an olivetolic acid. It is a conjugate acid of a cannabigerolate.
In the Cannabis plant, olivetolic acid and geranyl diphosphate are synthesized into CBGA.: 6 : 17 CBGA is converted in the plant by CBCA synthase, CBDA synthase and THCA synthase into CBCA, CBDA and THCA respectively.: 6–7 Afterwards, THCA and CBDA can be decarboxylated into THC and CBD by drying and heating plant material. CBGA has emerging pharmacological properties; for example, it had anticonvulsant effects in a mouse model of Dravet syndrome, a form of epilepsy.
In an analysis by the University of Rhode Island on phytocannabinoids it was found that CBGA had the 2nd highest 3C-like protease inhibitor activity against COVID-19 out of all the phytocannabinoids tested within that study but not as high as the antiviral drug GC376 (72% CBGA vs 24% CBG vs 100% GC376). 
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