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Chemical Basis Of Hashish Activity

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A sample of hashish was extracted consecutively with petroleum ether, benzene, and methanol. When tested intravenously in monkeys only the petroleum-ether fraction was active. This material was further fractionated. The only active compound isolated was Delta(1)-tetrahydrocannabinol. Cannabinol, cannabidiol, cannabichromene, cannabigerol, and cannabicyclol when administered together with Delta(1)-tetrahydrocannabinol do not cause a change in the activity of the latter, under the experimental conditions used. These results provide evidence that, except for Delta(1)-tetrahydrocannabinol, no other major, psychotomimetically active compounds are present in hashish.

Source: Chemical basis of hashish activity. [Science. 1970] - PubMed - NCBI
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