Product name: 2,3-Pentanedione, Acetylpropionyl
Molecular formula: C5H8O2
MDL: MFCD00009313

Physical and chemical properties:
yellow-green oily liquid. It has the aroma of sweet butter, cream, caramel, and has a nutty base. It has a slightly sweet smell of quinone, and a creamy smell when diluted.

Melting point -52℃,

Boiling point 108℃, (110～112℃)

Relative density 0.9565,

Relative density d154 0.953～0.959,

Refractive index n20D 1.408.

Refractive index 1.4014.

Slightly soluble in water, soluble in organic solvents such as ethanol

It can undergo oxidation, reduction, addition, and condensation reactions. It can be decomposed by potassium permanganate and converted into α-hydroxy acid by the action of sodium hydroxide.

Chemical properties
1. Properties and stability: under normal temperature and pressure, or no decomposition products.
2. Yellow liquid. It is widely present in a variety of foods such as poultry, livestock milk, roasted nuts, fried potatoes, bread, berry tomatoes, cocoa, tea in beverages, beer and various foreign wines in alcoholic beverages. This component is present, and certain essential oils are also found to exist. , The compound is a similar series of diacetyl, and its main characteristic style is creamy and milky. It dissolves in water and has a slightly sweet taste.
3. Exist in mainstream smoke. 

Uses:
1. China GB 2760-86 stipulates that it is allowed to be used as edible spices. Mainly used to prepare chocolate and cream flavors.
2. It is widely used in edible flavors and daily chemical flavors. Usually the amount of flavor of condiment is 0.3mg/kg; the amount of flavor of baked food can reach 9.6mg/kg. Used as soap flavor, detergent flavor, perfume flavor, cream flavor, etc.

Suggested dosage: The concentration in the final flavored food is about 0.28～59.6mg/kg.
Safety management status: 2,3-Pentanedione’s FEMA number is 2841, FDA number is 172.515, and CoE number is 2039. China GB 2760-1996 approved as permitted food flavors. 
Storage: Seal the container and store it in the sealed main container in a cool, dry place.
Packing: 200 liter drum, 25 liter plastic drum

Mr. Xie: 13093181818