Preferred name | alpha-isomethyl ionone (50% min.) |
Trivial Name | Isomethyl-α-ionone |
Short Description | alpha-isomethylionone (50% min.) |
Formula | C14 H22 O |
CAS Number | 127-51-5 |
FEMA Number | 2714 |
ECHA Number | 204-846-3 |
FDA UNII | 9XP4LC555B |
COE Number | 169 |
xLogP3-AA | 3.30 (est) |
NMR Predictor | External link |
JECFA Food Flavoring | 404 alpha-isomethylionone (50% min.) |
FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
FDA Mainterm | 127-51-5 ; ALPHA-ISOMETHYLIONONE |
Synonyms |
|
Google Scholar | Start search |
Google Books | Start search |
Google Patents | Start search |
Perfumer & Flavorists | Start search |
EU Patents | Start search |
PubMeb | Start search |
NCBI | Start search |
Leffingwell: | Chirality or Article |
(E)-3-methyl-4-(2,6,6-trimethyl-1-cyclohex-2-enyl)but-3-en-2-one (50% min.) | |
NIST Chemistry WebBook: | Search Inchi |
Canada Domestic Sub. List: | 127-51-5 |
Pubchem (cid): | 5372174 |
Pubchem (sid): | 135016869 |
(IUPAC): | Atomic Weights of the Elements 2011 (pdf) |
Videos: | The Periodic Table of Videos |
tgsc: | Atomic Weights use for this web site |
(IUPAC): | Periodic Table of the Elements |
FDA Substances Added to Food (formerly EAFUS): | View |
HMDB (The Human Metabolome Database): | HMDB31738 |
FooDB: | FDB008406 |
YMDB (Yeast Metabolome Database): | YMDB01634 |
Export Tariff Code: | 2914.23.0000 |
ChemSpider: | View |
Material listed in food chemical codex | No |
Molecular weight | 206.3285369873 |
Specific gravity | @ 25 °C |
Pounds per Gallon | 7.697 to 7.78 |
Refractive Index | 1.4965 to 1.504 @ 20 °C |
Boiling Point | 231 to 232°C @ 760 mm Hg |
Acid Value | 1 max KOH/g |
Vapor Pressure | 0.006 mmHg @ 20 °C |
Vapor Density | 7 |
Flash Point TCC Value | 100 °C TCC |
logP (o/w) | 4.315 |
Shelf life | 36 months (or longer if stored properly.) |
Storage notes | Store in cool, dry place in tightly sealed containers, protected from heat and light. |
Solubility | |
alcohol | Yes |
dipropylene glycol | Yes |
paraffin oil | Yes |
water, 2.98 mg/L @ 25 °C (est) | Yes |
Stability | |
acid cleaner | Unspecified |
alcoholic lotion | Unspecified |
deo stick | Unspecified |
detergent perborate | Unspecified |
fabric softener | Unspecified |
hair spray | Unspecified |
hard surface cleaner | Unspecified |
liquid detergent | Unspecified |
non-discoloring in most media | Unspecified |
shampoo | Unspecified |
soap | Unspecified |
Odor Type: Floral | |
violet, sweet, orris, powdery, floral, woody | |
Odor strength | medium , recommend smelling in a 10.00 % solution or less |
Substantivity | 124 hour(s) at 100.00 % |
Luebke, William tgsc, (1985) | At 10.00 % in dipropylene glycol. violet sweet orris powdery floral woody |
Flavor Type: Floral | |
floral, violet, powdery, dry, tea, herbal, berry, woody | |
Luebke, William tgsc, (1985) | Floral violet powdery dry tea herbal berry woody |
Applications | |
Odor purposes | Beeswax absolute replacer, Berry, Blueberry, Cassia, Chypre, Cranberry, Cyclamen, Fir needle oil replacer, Floral, Fruit, Genet, Leather, Leather russian leather, Mimosa, Moss, Oriental, Patchouli, Prune, Raspberry, Rose, Strawberry, Violet |
Other purposes | Anais anais, Charlie, Chloe, Diffusion, Estee, Fidji, L'air du temps, L'heure bleue, L'origan, Norell, Paris, Vika cologne |
Cosmetic purposes | Perfuming agents, Skin conditioning |
European information : | |
Most important hazard(s): | |
Xi N - Irritant, Dangerous for the environment. | |
R 38 - Irritating to skin. R 43 - May cause sensitisation by skin contact. R 51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. S 02 - Keep out of the reach of children. S 37 - Wear suitable gloves. | |
Hazards identification | |
Classification of the substance or mixture | |
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
Skin sensitisation (Category 1), H317 | |
GHS Label elements, including precautionary statements | |
Pictogram | ![]() |
Signal word | Warning |
Hazard statement(s) | |
H317 - May cause an allergic skin reaction | |
Precautionary statement(s) | |
P261 - Avoid breathing dust/fume/gas/mist/vapours/spray. P272 - Contaminated work clothing should not be allowed out of the workplace. P280 - Wear protective gloves/protective clothing/eye protection/face protection. P302 + P352 - IF ON SKIN: wash with plenty of soap and water. P333 + P313 - IF SKIN irritation or rash occurs: Get medical advice/attention. P363 - Wash contaminated clothing before reuse. P501 - Dispose of contents/ container to an approved waste disposal plant. | |
Oral/Parenteral Toxicity: | |
oral-rat LD50 > 5000 mg/kg Dispose of contents/ container to an approved waste disposal plant. | |
Dermal Toxicity: | |
skin-rabbit LD50 > 5000 mg/kg Dispose of contents/ container to an approved waste disposal plant. | |
Inhalation Toxicity: | |
Not determined |
Category: | |||
flavor and fragrance agents | |||
RIFM Fragrance Material Safety Assessment: Search | |||
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice | |||
IFRA Critical Effect: | |||
Dermal sensitization | |||
IFRA Other Specification: | |||
View the IFRA Standard | |||
View IFRA Standards Library for complete information. | |||
Please review Amendment 49 IFRA documentation for complete information. | |||
IFRA RESTRICTION LIMITS IN THE FINISHED PRODUCT (%): | |||
Category 1: Products applied to the lips | |||
5.40 % | |||
Category 2: Products applied to the axillae | |||
1.60 % | |||
Category 3: Products applied to the face/body using fingertips | |||
32.00 % | |||
Category 4: Products related to fine fragrance | |||
30.00 % | |||
Category 5: Products applied to the face and body using the hands (palms), primarily leave-on | |||
Category 5A: Body lotion products applied to the body using the hands (palms), primarily leave-on | |||
7.60 % | |||
Category 5B: Face moisturizer products applied to the face using the hands (palms), primarily leave-on | |||
7.60 % | |||
Category 5C: Hand cream products applied to the hands using the hands (palms), primarily leave-on | |||
7.60 % | |||
Category 5D: Baby Creams, baby Oils and baby talc | |||
7.60 % | |||
Category 6: Products with oral and lip exposure | |||
18.00 % | |||
Category 7: Products applied to the hair with some hand contact | |||
Category 7A: Rinse-off products applied to the hair with some hand contact | |||
61.00 % | |||
Category 7B: Leave-on products applied to the hair with some hand contact | |||
61.00 % | |||
Category 8: Products with significant anogenital exposure | |||
3.20 % | |||
Category 9: Products with body and hand exposure, primarily rinse off | |||
59.00 % | |||
Category 10: Household care products with mostly hand contact | |||
Category 10A: Household care excluding aerosol products (excluding aerosol/spray products) | |||
100.00 % | |||
Category 10B: Household aerosol/spray products | |||
100.00 % | |||
Category 11: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate | |||
Category 11A: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure | |||
100.00 % | |||
Category 11B: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure | |||
100.00 % | |||
Category 12: Products not intended for direct skin contact, minimal or insignificant transfer to skin | |||
No Restriction | |||
Notes: | |||
IFRA FLAVOR REQUIREMENTS: | |||
Due to the possible ingestion of small amounts of fragrance ingredients from their use in products in Categories 1 and 6, materials must not only comply with IFRA Standards but must also be recognized as safe as a flavoring ingredient as defined by the IOFI Code of Practice (www.iofi.org). For more details see chapter 1 of the Guidance for the use of IFRA Standards. | |||
Maximised Survey-derived Daily Intakes (MSDI-EU): | 4.70 (μg/capita/day) | ||
Maximised Survey-derived Daily Intakes (MSDI-USA): | 1.00 (μg/capita/day) | ||
Structure Class: | I | ||
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS). | |||
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library | |||
publication number: 3 | |||
Click here to view publication 3 | |||
average usual ppm | average maximum ppm | ||
baked goods: | - | 4.30000 | |
beverages(nonalcoholic): | - | 0.97000 | |
beverages(alcoholic): | - | - | |
breakfast cereal: | - | - | |
cheese: | - | - | |
chewing gum: | - | 0.80000 | |
condiments / relishes: | - | - | |
confectionery froastings: | - | - | |
egg products: | - | - | |
fats / oils: | - | - | |
fish products: | - | - | |
frozen dairy: | - | 0.98000 | |
fruit ices: | - | 0.98000 | |
gelatins / puddings: | - | 0.05000 | |
granulated sugar: | - | - | |
gravies: | - | - | |
hard candy: | - | 4.90000 | |
imitation dairy: | - | - | |
instant coffee / tea: | - | - | |
jams / jellies: | - | - | |
meat products: | - | - | |
milk products: | - | - | |
nut products: | - | - | |
other grains: | - | - | |
poultry: | - | - | |
processed fruits: | - | - | |
processed vegetables: | - | - | |
reconstituted vegetables: | - | - | |
seasonings / flavors: | - | - | |
snack foods: | - | - | |
soft candy: | - | - | |
soups: | - | - | |
sugar substitutes: | - | - | |
sweet sauces: | - | - |
European Food Safety Athority(EFSA):Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies... |
European Food Safety Authority (EFSA) reference(s): |
Flavouring Group Evaluation 213: alpha,beta-Unsaturated alicyclic ketones and precursors from chemical subgroup 2.7 of FGE.19 View page or View pdf |
Flavouring Group Evaluation 210: alpha,beta-Unsaturated alicyclic ketones and precursors from chemical subgroup 2.4 of FGE.19[1] View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 210 Revision 2 (FGE.210Rev2): Consideration of genotoxic potential for a,ß-unsaturated alicyclic ketones and precursors from chemical subgroup 2.4 of FGE.19 View page or View pdf |
EPI System: View |
AIDS Citations:Search |
Cancer Citations:Search |
Toxicology Citations:Search |
EPA Substance Registry Services (TSCA):127-51-5 |
EPA ACToR:Toxicology Data |
EPA Substance Registry Services (SRS):Registry |
Laboratory Chemical Safety Summary :5372174 |
National Institute of Allergy and Infectious Diseases:Data |
SCCNFP:opinion |
WGK Germany:2 |
(E)-3-methyl-4-(2,6,6-trimethyl-1-cyclohex-2-enyl)but-3-en-2-one (50% min.) |
Chemidplus:0000127515 |