4-METHYL-2,3-PENTANEDIONE Property

FEMA 

2730 | 4-METHYL-2,3-PENTANEDIONE

solubility 

Slightly soluble in water, soluble in Propylene glycol, Ethyl alcohol and all common perfume and flavor materials.

Odor

at 1.00 % in dipropylene glycol. sweet fruity buttery creamy fatty

Odor Type

buttery

JECFA Number

411

LogP

-0.45

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

H317May cause an allergic skin reaction

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P321Specific treatment (see … on this label).

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

4-METHYL-2,3-PENTANEDIONE Chemical Properties,Usage,Production

Description

4-Methyl-2,3-pentanedione has a characteristic pungent odor. This may be prepared from isonitroso methyl isobutyl ketone by treatment with concentrated H2S04; other methods employ mesityl oxide as the starting material.

Occurrence

Reported found in coffee, beer, avocado, malt and krill.

Uses

Frequently used in flavors for Banana, Butter, Butterscotch, Nut, Rum, StraJvberry, etc.

Preparation

Prepared from isonitroso methyl isobutyl ketone by treatment with concentrated H2SO4; other methods employ mesityl oxide as the starting material

Definition

ChEBI: 4-Methyl-2,3-pentanedione is an alpha-diketone.

Taste threshold values

Taste characteristics at 80 ppm: sweet, creamy, fruity, buttery, with a cooked estry nuance.