C6H5.O.C2H5

from The Collaborative International Dictionary of English v.0.48

Phenetol \Phe"ne*tol\, n. [Phenyl + ethyl + L. oleum oil.]
   (Chem.)
   The ethyl ether of phenol, obtained as an aromatic liquid,
   {C6H5.O.C2H5}.
   [1913 Webster]