494-72-4

4,4’-biphenyldione Propofol Impurity V 4,4′-DIPHENOQUINONE (DQ) Δ4,4'-Bi[2,5-cyclohexadiene-1-one] (bi-2,5-cyclohexadien-1-ylidene)-4,4’-dione [Bi-2,5-cyclohexadien-1-ylidene]-4,4'-dione 4-(4-oxo-2,5-cyclohexadien-1-ylidene)-5-cyclohexadien-1-one 4-(4-Oxo-2,5-cyclohexadien-1-ylidene)-2,5-cyclohexadien-1-one 2,5-Cyclohexadien-1-one, 4-(4-oxo-2,5-cyclohexadien-1-ylidene)-