At room temperature,<unk>  is a colorless crystalline solid. In strongly basic media and the presence of air, it is oxidized to a quinone. Under acidic conditions it cyclizes to THC, which also occurs during pyrolysis, but not during combustion (smoking). The synthesis of<unk>  has been accomplished by several research groups. : Intramolekulare cyklisierung von CBD zu Δ9-THC Possible mechanism of intramolecular cyclization of CBD to Δ9-THC Biosynthesis<unk>  and THC biosynthesis Cannabis produces CBD-carboxylic acid through the same metabolic pathway as THC, until the next to last step, where CBDA synthase performs catalysis instead of THCA synthase. Isomerism<unk>  numbering<unk> 's 7 double bond isomers and their 30 stereoisomers Formal numbering Terpenoid numbering Number of stereoisomers Natural occurrence Convention on Psychotropic Substances Schedule Structure Short name Chiral centers Full name Short name Chiral centers Δ5-Cannabidiol 1 and 3 2-(6-isopropenyl-3-methyl-5-cyclohexen-1-yl)-5-pentyl-1,3-benzenediol Δ4-Cannabidiol 1 and 3 4 No Unscheduled 150px Δ4-Cannabidiol 1, 3 and 6 2-(6-isopropenyl-3-methyl-4-cyclohexen-1-yl)-5-pentyl-1,3-benzenediol Δ5-Cannabidiol 1, 3 and 4 8 No Unscheduled 150px Δ3-Cannabidiol 1 and 6 2-(6-isopropenyl-3-methyl-3-cyclohexen-1-yl)-5-pentyl-1,3-benzenediol Δ6-Cannabidiol 3 and 4 4 ? Unscheduled 150px Δ3,7-Cannabidiol 1 and 6 2-(6-isopropenyl-3-methylenecyclohex-1-yl)-5-pentyl-1,3-benzenediol Δ1,7-Cannabidiol 3 and 4 4 No Unscheduled 150px Δ2-Cannabidiol 1 and 6 2-(6-isopropenyl-3-methyl-2-cyclohexen-1-yl)-5-pentyl-1,3-benzenediol Δ1-Cannabidiol 3 and 4 4 Yes Unscheduled 150px Δ1-Cannabidiol 3 and 6 2-(6-isopropenyl-3-methyl-1-cyclohexen-1-yl)-5-pentyl-1,3-benzenediol Δ2-Cannabidiol 1 and 4 4 No Unscheduled 150px Δ6-Cannabidiol 3 2-(6-isopropenyl-3-methyl-6-cyclohexen-1-yl)-5-pentyl-1,3-benzenediol Δ3-Cannabidiol 1 2 No Unscheduled 150px Pyrolysis In the typical operating temperature range of e-cigarettes (250–400 °C), 25–52% of CBD is transformed into other chemical substances: Δ9-THC, Δ8-THC, cannabinol and cannabichromene as predominant pyrolysates. From a chemical point of view, CBD in e-cigarettes can be considered as a precursor of THC.
Cannabidiol
Cannabigerolic acid
Tetrahydrocannabinol
Chlormerodrin
Phenibut
Squalene
Beta-Zearalenol
Nitisinone