English name

2,3-Pentanedione

CAS No.

600-14-6

UN No.

1224

EINECS accession No.

209-984-8

FEMA accession No.

2841

Molecular formula

C5H8O2

Chemical formula

Molecular weight

100.12

Safety instruction

S16： Keep away from fire.
     S26：Once contact occurs with eyes,flush immediately with plenty of  water ,and hospital treatment.
     S37/39：
   Wear appropriate protective clothing and gloves

Dangerous mark

F：nflammable
Xi：rritant substance

Risk code

R11： Highly inflammable
R36/37/38：

irritant to eyes, respiratory tract and skin

Physical and chemical indexes

Color

Light yellow to yellow green liquid

Physical form

Liquid

Flavor

Pungent, buttery when diluted

Content

First kind: 93.0 ≤ content ≤ 98.0
 [the main impurity is 2,5-diethyl-2,5-cyclohexadiene-1,4-dione (i.e. dimer of 2,3-pentanedione))
Second kind: content ≥ 98.0

（25℃ ） Solubility

1ml 3ml50%
1ml sample is completely dissolved in 3ml 50% (volume fraction) ethanol

（20℃ ）Refractive index

1.402~1.406

（25℃/25℃）
Relative density

First kind content：0.9620.985
Second kind content：0.952~0.962

Melting point

 -52℃ 

Boiling Point

108℃ 

Solubility

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

Application

1.It is the permitted edible flavor by GB 2760-86 in China. It is mainly used to make chocolate and cream flavors.
2.It is widely used in food flavors and daily flavors. Usually the flavoring dosage is 0.3mg/kg, and the flavor of baked food can is 9.6mg/kg. It is used as soap essence, detergent essence, perfume perfume, cream flavor, etc.

Presence

Presence

Natural products are found in essential oils such as Finnish pine

Recommended dosage

0.28～59.6mg/kg
The concentration in the final flavored food is about 0.28-59.6mg/kg.

Storage

Store in a sealed main reservoir in a cool, dry place