Synonyms: 6H-Dibenzo[b,d]pyran-2-carboxylicacid, 6a,7,8,10a-tetrahydro-1-hydroxy-6,6,9-trimethyl-3-pentyl- (7CI);6H-Dibenzo[b,d]pyran-2-carboxylic acid,6a,7,8,10a-tetrahydro-1-hydroxy-6,6,9-trimethyl-3-pentyl-, (6aR-trans)-;6H-Dibenzo[b,d]pyran-2-carboxylic acid, 6ab,7,8,10aa-tetrahydro-1-hydroxy-6,6,9-trimethyl-3-pentyl- (8CI); (-)-trans-D9-Tetrahydrocannabinol acid; (-)-D9-trans-Tetrahydrocannabinolicacid; Cannabinolcarboxylic acid, D9-tetrahydro-; Cannabinolic acid A, D1-tetrahydro-; Tetrahydrocannabinolcarboxylic acid;Tetrahydrocannabinolic acid; D1-Tetrahydrocannabinolic acid A; D9-THC-carboxylic acid; D9-Tetrahydrocannabinoic acid A; D9-Tetrahydrocannabinolcarboxylicacid; D9-Tetrahydrocannabinolic acid