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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.
In an in vitro analysis by the University of Rhode Island on cannabinoids it was found that 11-OH-Δ 9-THC had the 3rd highest 3C-like protease inhibitor activity against COVID-19 out of all the cannabinoids tested within that study but not as high as the antiviral drug GC376 (56% for 11-OH-Δ 9-THC vs. 100% for GC376).
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.
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THC acetate ester (THC-O or THCOA) can be synthesized from THC, [2] [3] or from THCA. The acetylation of THC does not change the properties of the compound to the same extent as with other acetate esters, as the parent compound (THC) is already highly lipophilic, but potency is nonetheless increased to some extent.
The presence of these specialized cannabinoid receptors in the brain led researchers to the discovery of endocannabinoids, such as anandamide and 2-arachidonoyl glyceride . [ citation needed ] THC is a lipophilic molecule [ 27 ] and may bind non-specifically to a variety of entities in the brain and body, such as adipose tissue (fat).
To administer the test, a user simply has to mix the chemicals with a particle of the suspected substance; if the chemicals turn purple, this indicates the possibility of marijuana. But the color variations can be subtle, and readings can vary by examiner. It was adopted in the 1950s by the United Nations as the preferred test for cannabis ...
Another endocannabinoid, 2-arachidonoylglycerol, binds to both the CB 1 and CB 2 receptors with similar affinity, acting as a full agonist at both. [ 76 ] 2-AG is present at significantly higher concentrations in the brain than anandamide, [ 81 ] and there is some controversy over whether 2-AG rather than anandamide is chiefly responsible for ...