FIELD: medicine, pharmacy. SUBSTANCE: dihydroquercitin is obtained from larch saw-dust wood. Saw-dust were wetted with hot water up to 60-70% moisture followed by extraction with acetone at heating, extract evaporation and crystallization from an aqueous-salt or an aqueous-alcoholic solution. EFFECT: simplified method, decreased time of extraction, increased yield of the end product, high purity of product. 1 tbl
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