In addition to mixed crystals of ergosterol and ergosta-7,22-dien-3β-ol, ergosta-7,22-dien-3-one, polyporenic acid C, n-heptanol, n-octanol, mannitol, trehalose, cinnabarin, and the n-alkanes from C₂₄ to C₃₁, have been identified as constituents of the fungus, Coriolus sanguineus Fr.