Tetrahydrocannabinolic acid, or cannabinol acid, is a naturally occurring compound found in the cannabis plant. Unlike its more well-known cousin, delta-9 tetrahydrocannabinol (delta-9 THC), THCA is not psychoactive. https://adreaufpe152122.pointblog.net/thca-the-precursor-to-delta-9-thc-83406589