The distribution of condensed aromatic hydrocarbons containing 2-5 "joined" aromatic rings per molecule between octane and polar organic solvents of different nature has been studied at a temperature of 20 degrees C + 1 deg. The dependences of the distribution constants of condensed aromatic hydrocarbons on the number of aromatic rings per molecule, the type of joining and the nature of the polar organic solvent have been established. The solvent groups characterized by different orders of extractability of condensed aromatic hydrocarbons have been determined. It has been shown that the extraction of substituted condensed aromatic hydrocarbons, in contrast to that of sunstituted benzenes, cannot be described from positions of the principle of additivity of the free energy of distribution. The basic possibility of extraction separation of condensed aromatic hydrocarbons and their isolation from hydrocarbon feedstock and surrounding media has been demonstrated.