Is Delta 9 THC Legal in Texas? Delta 9 THC is the psychoactive substance found in cannabis plants that gives people a high. But Delta 9 THC is also one of the most dangerous cannabinoids. The Federal Government lists delta-9 THC on its Schedule 1 list of potentially dangerous drugs. https://usadelta915889.thechapblog.com/20087599/you-ve-forgotten-delta-9-thc-store-10-reasons-why-you-do-not-need-it