10499-26-0 4-Cyclohexene-1,3-dione, 5-hydroxy-2,2,6,6-tetramethyl-4-(1-oxo-3-phenylpropyl)- 5-Hydroxy-2,2,6,6-tetramethyl-4-(1-oxo-3-phenylpropyl)-4-cyclohexene-1,3-dione