CH3.O.C6H4.CO-

from The Collaborative International Dictionary of English v.0.48

Anisyl \An"i*syl\, n. (Org. Chem.)
   (a) The univalent radical, {CH3.O.C6H4-}, of which anisol is
       the hydride.
   (b) The univalent radical {CH3.O.C6H4.CH2-}; as, anisyl
       alcohol.
   (c) The univalent radical {CH3.O.C6H4.CO-}, of anisic acid.
       [Webster 1913 Suppl.]