Cas Number


Other Names



Methyl phenyl ketone


The formula



Acetophenone is the organic compound with the formula C6H5C(O)CH3 (also represented by the pseudoelement symbols PhAc or BzMe). It is the simplest aromatic ketone. This colorless, viscous liquid is a precursor to useful resins and fragrances.

Physical and Chemical Properties
Physical state and appearance Liquid
Molecular Weight 120.16 g/mole
pH (1% soln/water) 7 [Neutral.]
Color Colorless to light yellow
Boiling Point 201.7°C (395.1°F)
Flash point Approx 78 ºC.
Melting Point 19.7°C (67.5°F)
Specific Gravity 1.03 (Water = 1)
Vapor Pressure 0.1 kPa (@ 20°C)
Vapor Density 4.1 (Air = 1)
Dispersion Properties See solubility in water, methanol, diethyl ether
Solubility Soluble in methanol, diethyl ether. Partially soluble in cold water, hot water.
Benzene 0.1% Max.
Acetophenone 98.2 %.
Purity 98% Min.
Water when shipped 0.2% Max.
Density (lbs/gal (US)@20°) (@ 20 ºC): 1.03 g/ml.
Alpha-Methyl styrene 0.25%.

1. Acetophenone is used to create fragrances that resemble almond, cherry, honeysuckle, jasmine, and strawberry

2. It is used in chewing gum

3. Being prochiral, acetophenone is also a popular test substrate for asymmetric transfer hydrogenation experiments

4. Acetophenone is also commonly used as a flavouring in many cherry flavoured sweets and drinks, as it costs far less and proves as satisfying to consumers this way