The sonication of a mixture of C60 fullerene and anthracene in benzene yields the trans-1 bis-adduct C60(anthracene)2 in 52% yield. The bis-adduct is accompanied by the monoadduct C60(anthracene) in 26% yield. The reaction products of the sonochemical synthesis were identified by FT-IR and electronic absorption spectroscopy. The composition of adducts and their thermal stability was studied by thermogravimetric analysis (TGA) and by differential thermal analysis (DTA). The advantages of the sonochemical synthesis in terms of yields and regioselectivity toward the highly symmetric trans-1 bis-adduct C60(anthracene)2 are outlined. thermal analysis