FEMA 2597 Chemical Properties

Boiling point:

238 °C

Density 

0.928±0.06 g/cm3(Predicted)

FEMA 

2711 | METHYL-ALPHA-IONONE

Odor

at 10.00 % in dipropylene glycol. floral violet orris powdery woody

Odor Type

powdery

JECFA Number

398

LogP

4.39

EPA Substance Registry System

1-Penten-3-one, 1-[(1R)-2,6,6-trimethyl-2-cyclohexen-1-yl]-, (1E)- (127-42-4)

FEMA 2597 Usage And Synthesis

Description

Methyl-α-ionone has an odor similar to α-ionone but lighter and more rounded with a pleasant, fruity, and sweet nuance. May be prepared by condensation of citral with methyl ethyl ketone (see methyl y-ionone or α-iso-methylionone).
Pectic enzymes are indispensable for making high-density fruit juice concentrates or purees. Enzyme depectinization is required for apple juice concentrate of about 72° Brix, which is made on a large scale, as otherwise a gel would result rather than the desired liquid concentrate. Pectic enzymes are useful in treating orange, grape and prune pulps prior to vacuum puff drying.

Chemical Properties

Methyl-α-ionone has an odor similar to α-ionone, but lighter and more rounded. It has a pleasant, fruity and sweet nuance

Preparation

By condensation of citral with methyl ethyl ketone (see methyl γ-ionone or α-iso-methylionone)

Taste threshold values

Taste characteristics at 10 ppm: fruity, berry, woody, ionone-like with floral, jamy nuances.

FEMA 2597(127-42-4)Related Product Information

• 4-PENTEN-3-ONE, 5-(2,6,6-TRIMETHYL-2-CYCLOHEXEN-1-YL)
• Cyclohexene
• Ionone
• METHYLIONONE
• Ethyl vinyl ketone
• IRONE
• Irone
• FEMA 2597
• alpha-Ionone