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The Duquenois–Levine test is a simple chemical color reaction test initially developed in the 1930s by Pierre Duquénois. 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.
In January 2008, the American College of Physicians called for a review of cannabis's Schedule I classification in its position paper titled "Supporting Research into the Therapeutic Role of Marijuana" It stated therein: "Position 4: ACP urges an evidence-based review of marijuana's status as a Schedule I controlled substance to determine ...
THC and its 11-OH-THC and THC-COOH metabolites can be detected and quantified in blood, urine, hair, oral fluid or sweat using a combination of immunoassay and chromatographic techniques as part of a drug use testing program or in a forensic investigation. [58] [59] [60] There is ongoing research to create devices capable of detecting THC in ...
This is the list of Schedule I controlled substances in the United States as defined by the Controlled Substances Act. [1] The following findings are required for substances to be placed in this schedule: [2]
WASHINGTON (AP) — The U.S. Drug Enforcement Administration is moving toward reclassifying marijuana as a less dangerous drug. The Justice Department proposal would recognize the medical uses of ...
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.
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.
These are achieved at lower doses, because many synthetic cannabinoids are more potent than marijuana, and users are often unaware of exactly what they are getting and how potent it is. [62] For example, Δ 9-THC has an EC 50 of 250 nM at CB 1 and 1157 nM at CB 2, whereas PB-22 has an EC 50 of 5.1 nM at CB 1 and 37 nM at CB 2. [8]