16849-44-8 6H-Dibenzo(b,d)pyran-1-ol, 6a,7,8,9,10,10a-hexahydro-6,6-dimethyl-9-methylene-3-pentyl-, trans-(+-)- delta 9-11 Thc delta(9-11)-Tetrahydrocannabinol delta-11-Tetrahydrocannabinol