Abstract: Four know ergosterols,5α,8α-epidioxy-(22E,24R)-ergosta-6,22-dien-3β-ol 1,5α,8α-epidioxy-(24S)-ergosta-6-en-3β-ol 2,and (24S)-ergosta-7-ene-3β,5α,6α-tirol 3,(22E,24R)-ergosta-7,22-dien-3β,5α,6α-riol and D-allitol and stearic acid have isolated from the fruiting bodies of Russula cyanoxantha,their structures were determined by means of spectral methods. It is the first to eport the report the isolation of compound 3 and D-allitol from higher fungi.

Key words: Russula cyanoxantha, Fruiting bodies, Russulaceae, Basidiomycetes, Ergosterols, Peroxides