In the title compound, C(30)H(21)As·CHCl(3), the dihedral angles between the three naphthalene ring systems [r.m.s. deviations = 0.007, 0.009 and 0.020 Å] are 72.54 (4), 88.05 (4) and 83.36 (4)°. In the crystal, the mol-ecules are stacked down the a axis being consolidated by C-H⋯π and π-π inter-actions [centroid to centroid distance = 3.7839 (7) Å].