| Identification | Back Directory | [Name]
FEMA 2597 | [CAS]
127-42-4 | [Synonyms]
IRONAL
FEMA 2711
FEMA 2597
IRONE ALPHA
METHYLIRIDON
ALPHA-CENTRONE
L-Methylionone
(r-(e))-1-(2,6,6
ALPHA-METHYL IONONE
METHYL IONONE ALPHA
FEMA 2597 USP/EP/BP
a-METHYL IONONE REGULAR
METHYL IONONE ALPHA EXTRA
(E)-alpha-methyl ionone (44-50%)
(E)-alpha-methyl ionone (74-80%)
Methyl lonone (cis- and trans- mixture)
5-(2,6,6-Trimethyl-2-cyclohexenyl)-4-penten-3-one
1(E)-(2,6,6-trimethyl-cyclohex-1-enyl)-pent-1-en-3-one
(R-(E))-1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)pent-1-en-3-on
(E)-1-[(R)-2,6,6-Trimethyl-2-cyclohexen-1-yl]-1-penten-3-one
(r-(e))-1-(2,6,6-trimethyl-2-cyclohexen-1-yl)pent-1-en-3-one
1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-,[R-(E)]-1-Penten-3-one
6,6-trimethyl-2-cyclohexen-1-yl)-1-([theta-(e)]-1-penten-3-on | [EINECS(EC#)]
204-842-1 | [Molecular Formula]
C14H22O | [MDL Number]
MFCD00673232 | [MOL File]
127-42-4.mol | [Molecular Weight]
206.32 |
| Hazard Information | Back Directory | [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. |
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