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Although chemical research on marijuana began over 150 years ago, it wasn't until 1964 that the first authenticated isolation of a pure, active principle delta-one tetrahydrocannabinol ( -THC) was achieved, and not until 1970 that it was determined to be the only major psychoactive component.
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Key Phrases - Statistically Improbable Phrases (SIPs):
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extract with ether, cannabinoid phenotypes, propyl cannabinoids, cannabinoid content, cannabinoid profile, combined ether layers, hash oil, potent marijuana, potent plants, hashish oil, flowering tops, dry ether, resin production, glandular hairs, cannabis resin
Key Phrases - Capitalized Phrases (CAPs):
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Canada Flowering, South African, Japan Japan, Journal of Pharmaceutical Science, Mississippi Grown Cannabis, Norway Immature, Thailand Mississippi Flowering, Dosage des Chanvre, North Africa, Santa Marta, Two Constituents of Hashish, United States, Wacky Weed, Common Cannabinoid Phenotypes, Lebanon Lebanon Flowering, Plant Science Bulletin, Stocks of Cannabis
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