Tetrahydrocannabinol (THC), or more precisely its main isomer, (6aR,10aR)-delta-9-tetrahydrocannabinol, is the main psychoactive component contained in cannabis, first isolated in 1964 in its pure form by Israeli scientists Raphael Mechoulam, Yechiel Gaoni and their colleagues at the University of Jerusalem. THC is a glassy solid at low temperatures, becoming viscous…