5-METHYL-2,3-HEXANEDIONE Chemical Properties

Melting point:

26.25°C (estimate)

Boiling point:

138 °C

Density 

0,92 g/cm³

refractive index 

1.4148 (589.3 nm 20℃)

FEMA 

3190 | 5-METHYL-2,3-HEXANEDIONE

Flash point:

33°C

form 

clear liquid

color 

Light yellow to Brown

Odor

at 1.00 % in propylene glycol. sweet sharp fruity creamy brown butter

Odor Type

fruity

JECFA Number

414

LogP

0.06

EPA Substance Registry System

2,3-Hexanedione, 5-methyl- (13706-86-0)

Safety Information

Risk Statements 

10

Safety Statements 

16

RIDADR 

1224

RTECS 

MO3200000

HS Code 

2914.19.0000

HazardClass 

3

PackingGroup 

III

5-METHYL-2,3-HEXANEDIONE Usage And Synthesis

Description

5-Methyl-2,3-hexanedione has a powerful oily-buttery odor with a sweet taste in aqueous solution. May be synthesized by bromination of mesityl oxide, followed by treatment of the resulting dibromide with sulfuric acid.

Chemical Properties

5-Methyl-2,3-hexanedione has a powerful, oily-buttery odor and a sweet taste in aqueous solution.

Occurrence

Reported found in coffee and American potato chips

Definition

ChEBI: 5-Methyl-2,3-hexanedione is an alpha-diketone.

Safety Profile

A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.

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