Delta-9-tetrahydrocannabinol (D9) is the original tetrahydrocannabinol (THC) most cannabis users are familiar with. What some may not realize, however, is this version of THC exists in hemp in small quantities.
According to the Agricultural Marketing Act of 1946, “hemp” is defined as “Cannabis sativa L. … with a delta-9 tetrahydrocannabinol concentration of not more than