Methyl Ionone Gamma

Alpha-isomethyl ionone (50% min.)

It is extremely versatile in character, and effects ranging from sweet floral to tobacco-like or woody are obtainable with various grades of subject material. The most refined grades, which are quite expensive, often show a very attractive "creamy" top-note and a most uniform, powdery-sweet dryout performance.

General Information

CategoryAromatic Compound
IUPAC Name(E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one
CAS Number127-51-5
Molecular Weight206.32 g/mol
Canonical SMILESCC1=CCCC(C1C=C(C)C(=O)C)(C)C

Organoleptic Properties

Odor Family
Floral
Odor Strength
Medium
Odor DescriptionFloral, Orris, Powdery, Sweet, Violet, Woody
Substantivity124 hours at 100%

Physical Properties

AppearanceColorless to yellow clear oily liquid (est)
Specific Gravity0.925 to 0.935 @ 25 °C.
Pounds per Gallon7.697 to 7.78
Refractive Index1.4965 to 1.504 @ 20 °C.
Vapor Pressure0.006 mmHg @ 20 °C.
Vapor Density7.0 ( Air = 1 )
Boiling Point76 °C. @ 0.3 mm Hg
Flash Point> 212 °F. TCC ( > 100 °C. )
XLogP3.3
Acid Value1 max. KOH/g
Shelf Life36 months if stored properly
StorageStore in cool, dry place in tightly sealed containers, protected from heat and light.
Soluble inAlcohol
Dipropylene glycol
Paraffin oil
Water, 2.98 mg/L @ 25 °C (est)

IFRA

Standardhttps://ifrafragrance.org/standards/IFRA_STD_063.pdf
CategoryFlavor and fragrance agents
Critical EffectDermal sensitization
Restrictions
Usage limits in the finished product
Cat. 1Category 1:5.4 %
Cat. 2Category 2:1.6 %
Cat. 3Category 3:32.00 %
Cat. 4Category 4:30.00 %
Cat. 5ACategory 5A:7.6 %
Cat. 5BCategory 5B:7.6 %
Cat. 5CCategory 5C:7.6 %
Cat. 5DCategory 5D:7.6 %
Cat. 6Category 6:18.00 %
Cat. 7ACategory 7A:61.00 %
Cat. 7BCategory 7B:61.00 %
Cat. 8Category 8:3.2 %
Cat. 9Category 9:59.00 %
Cat. 10ACategory 10A:No Restriction
Cat. 10BCategory 10B:No Restriction
Cat. 11ACategory 11A:No Restriction
Cat. 11BCategory 11B:No Restriction
Cat. 12Category 12:No Restriction

Safety Information

PictogramsGHS07: Harmful
Hazard StatementH315 - Causes skin irritation
H317 - May cause an allergic skin reaction
H319 - Causes serious eye irritation
Europe Standard HazardN - Dangerous for the environment
Xi - Irritant
Precautionary StatementP261 - Avoid breathing dust/fumes/gas/mist/vapours/spray
P264 - Wash … thoroughly after handling
P272 - Contaminated work clothing should not be allowed out of the workplace
P280 - Wear protective gloves/protective clothing/eye protection/face protection
P302 + 352 - IF ON SKIN: Wash with plenty of water/…
P305 + 351 + 338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do – continue rinsing
P332 + 313 - If skin irritation occurs: Get medical advice/attention
P333 + 313 - If skin irritation or a rash occurs: Get medical advice/attention
P337 + 313 - If eye irritation persists get medical advice/attention
P362 - Take off contaminated clothing
P363 - Wash contaminated clothing before reuse
P501 - Dispose of contents/container in accordance with local/regional/national/international regulations.
R-phrasesR38 - Irritating to skin
R43 - May cause sensitisation by skin contact
R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
S-phrasesS2 - Keep out of the reach of children
S37 - Wear suitable gloves

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