The article represents data about qualitative and quantitative composition of phenolic compounds in water-ethanol extract of perspective clone of Mentha longifolia L.of NBE-NSC selection.Phenolic substances content in water-ethanol extract amounted to 3003.3 mg/100g.
13 Pot Supports components were determined in the extract.The extract contains caffeic acid, chlorogenic acid isomers, rosmarinic acid and glycosides of luteolin.Rosmarinic acid (50.2%) prevails among phenolic substances of Mentha longifolia extract.
The conclusion is that the use of this extract Basket is possible to create products with high biological value.