Synonyms: 6H-Dibenzo[b,d]pyran-1,8-diol,6a,7,8,10a-tetrahydro-9-(hydroxymethyl)-6,6-dimethyl-3-pentyl-, [6aR-(6aa,8b,10ab)]- (9CI); (-)-8a,11-Dihydroxy-D9-tetrahydrocannabinol; 6a,7-Dihydroxy-D1-tetrahydrocannabinol; 8,11-Dihydroxytetrahydrocannabinol; 8a,11-Dihydroxy-D9-THC; 8a,11-Dihydroxy-D9-tetrahydrocannabinol