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Although the chemical formula for THC (C 21 H 30 O 2) describes multiple isomers, [10] the term THC usually refers to the delta-9-THC isomer with chemical name (−)-trans-Δ 9-tetrahydrocannabinol. It is a colorless oil.
Δ-8-tetrahydrocannabinol (delta-8-THC, [a] Δ 8-THC) is a psychoactive cannabinoid found in the cannabis plant. [1] It is an isomer of delta-9-tetrahydrocannabinol (delta-9-THC, Δ 9-THC), the compound commonly known as THC, with which it co-occurs in hemp; natural quantities of ∆ 8-THC found in hemp are low.
The Δ 9 isomer of THCP occurs naturally in cannabis, but in small amounts. A 2021 study reported the content of Δ 9 -THCP ranging from 0.0023% to 0.0136% (w/w) (approximately 0.02–0.13 mg/g) without correlation to THC percentage in Δ 9 -THC -dominant strains of cannabis; that study failed to detect THCP in CBD -dominant strains.
Delta-9-THCO and delta-8-THCO do not occur naturally in the cannabis plant and can only be obtained synthetically, and therefore do not fall under the definition of hemp…Thus, Δ9-THC-O and Δ8-THC-O meet the definition of 'tetrahydrocannabinols,' and they [and products containing Δ9-THC-O and Δ8-THC-O] are controlled in schedule I by 21 U ...
Dronabinol is the principal psychoactive constituent enantiomer form, (−)-trans-Δ 9-tetrahydrocannabinol, found in Cannabis sativa L. plants, [8] but can also be synthesized in laboratory. Dronabinol does not include any other tetrahydrocannabinol (THC) isomers or any cannabidiol .
Tetrahydrocannabinolic acid (THCA, 2-COOH-THC; conjugate base tetrahydrocannabinolate) is a precursor of tetrahydrocannabinol (THC), an active component of cannabis. [1]THCA is found in variable quantities in fresh, undried cannabis, but is progressively decarboxylated to THC with drying, and especially under intense heating such as when cannabis is smoked or cooked into cannabis edibles.
The same study found Delta-9-THC to have a binding affinity of 15nM ± 4.4nM at CB1 and 9.1nM ± 3.6nM at CB2. 9R-HHC has a lower selectivity for CB2 (1.2x) compared to D9-THC (1.6x). 9R-HHC has an EC50 of 3.4nM ± 1.5nM at CB1 and 6.2nM ± 2.1nM at CB2 while 9S-HHC has an EC50 of 57nM ± 19nM at CB1 and 55nM ± 10nM at CB2. The same study ...
Delta - indicating that the double bond is created at a fixed position from the carboxyl end of a fatty acid chain. For example, Δ9-desaturase creates a double bond between the ninth and tenth carbon atom from the carboxyl end. Omega - indicating the double bond is created at a fixed position from the methyl end of a fatty acid chain. For ...