Column chromatography with preparative thin layer chromatography has been used to isolate two compounds from Thymi extractum fluidum. Identification of those compounds has been carried out by spectroscopic methods: LSIMS and UV. Isolated compounds are: 5,4’-dihydroxy-6,7,3’-trimethoxsyflavon (cirsilineol) and 5,4’-dihydroxy-6,7,8,3-tetramethoxyflavon (8-methoxycirsilineol).