EN
Occurrence of 13 phenolic acids, mainly in bounded form, in Gentiana lutea L. roots was ascertained. Free phenolic acids content m pharmacopoeial raw materials keeping about one year in store condition was greater than in raw material harvesting from natural places and studying in a short time after harvest. Taking into consideration content of free and bounded phenolic acids, sinapic acid in pharmacopoeial raw materials and p-coumarie acid in fresh raw material have dominated. In G. lutea root the presence of chinic acid has been identificated for the first time.