All cannabinoids start as CBG. It is a non-intoxicating compound, and of medical interest for pain management and anxiety relief.
CBG is often referred to as the ‘parent cannabinoid’. All phytocannabinoids start out as CBG in their developmental processes.
Summary from Wikipedia:
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.Read more