METHOD FOR PREPARING DELTA-9-TETRAHYDROCANNABINOL

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive method of preparing delta-9-tetrahydrocannabinol (THC) which is a medical drug and has been approved by the Food and Drug Administration (FDA) for the control of nausea and vomiting associated with chemotherapy and is the main biologically active component in the Cannabis plant.

SOLUTION: The method of preparing is a method for the isolation of delta-9-tetrahydrocannabinol (THC) from Cannabis plant material and comprises: (a) extracting the Cannabis plant material with a non-polar organic solvent to form an extract; (b) removing the solvent from the extract to give a residue; and (c) subjecting the residue to low pressure flash distillation and collecting a first distillate containing THC from a constant boiling range in the distillation.

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