We have succeeded in growing a new ternary Ce compound CeAu4Si2. This compound crystallizes in the tetragonal crystal structure P (4) over barm(2)(#115) with lattice parameters a = 4.3304 angstrom and c = 27.409 angstrom. The local environment around Ce atoms is similar to that of the well-known ThCr2Si2-type tetragonal structure in CeAu2Si2. Single crystals of CeAu4Si2 were grown by the flux method using an Au4.37Si eutectic alloy as flux. Electrical resistivity, specific heat and magnetization measurements revealed a ferromagnetic ordering at T-C = 5.3 K with a saturation moment of 1.7 mu(B)/Ce. Anisotropic features in the magnetic susceptibility and magnetization were well explained by a crystalline electric field (CEF) model. Estimated excitation energies from the ground state doublet to two excited doublets are 284 and 340 K, respectively. (c) 2005 Elsevier B.V. All rights reserved.