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ketoisophorone
General Material Information
| Preferred name | ketoisophorone |
| Trivial Name | Ketoisophorone |
| Short Description | 2,6,6-trimethylcyclohex-2-ene-1,4-dione |
| Formula | C9 H12 O2 |
| CAS Number | 1125-21-9 |
| FEMA Number | 3421 |
| Flavis Number | 7.109 |
| ECHA Number | 214-406-2 |
| FDA UNII | 72WY3KLB5R |
| Nikkaji Number | J94.748B |
| Beilstein Number | 2207030 |
| MDL | MFCD00043119 |
| COE Number | 11200 |
| xLogP3-AA | 1.00 (est) |
| Bio Activity Summary | External link |
| NMR Predictor | External link |
| JECFA Food Flavoring | 1857 2,6,6-trimethylcyclohex-2-ene-1,4-dione |
| FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm | 1125-21-9 ; 2,6,6-TRIMETHYLCYCLOHEX-2-ENE-1,4-DIONE |
| Synonyms |
|
US / EU / FDA / JECFA / FEMA / Scholar / Patents
| 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 |
Literature & References
| 2,6,6-trimethylcyclohex-2-ene-1,4-dione | |
| NIST Chemistry WebBook: | Search Inchi |
| Canada Domestic Sub. List: | 1125-21-9 |
| Pubchem (cid): | 62374 |
| Pubchem (sid): | 135020326 |
| Pherobase: | View |
Other Information
| (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): | HMDB40216 |
| FooDB: | FDB019928 |
| Export Tariff Code: | 2914.29.5000 |
| Typical G.C. | |
| VCF-Online: | VCF Volatile Compounds in Food |
| ChemSpider: | View |
| Wikipedia: | View |
Suppliers
PhysChem Properties
| Material listed in food chemical codex | No |
| Molecular weight | 152.19303894043 |
| Specific gravity | @ 25 °C |
| Pounds per Gallon | |
| Melting Point | 23 to 28°C @ 760 mm Hg |
| Boiling Point | 92 to 94°C @ 11 mm Hg |
| Vapor Pressure | 0.158 mmHg @ 25 °C |
| Flash Point TCC Value | 96.11 °C TCC |
| logP (o/w) | 0.994 est |
| Solubility | |
| alcohol | Yes |
| water, slightly | Yes |
| water, 1839 mg/L @ 25 °C (est) | Yes |
Organoleptic Properties
| Odor Type: Musty | |
| musty, woody, sweet, tea, tobacco, leafy, citrus, lemon, brown | |
| General comment | At 1.00 % in dipropylene glycol. musty woody sweet tea tobacco leaf |
| Mosciano, Gerard P&F 15, No. 4, 59, (1990) | Musty, woody, sweet, tea, citrus lemon with sI. brown nuances |
| Flavor Type: Citrus | |
| citrus, floral, musty, tea, green, sweet, fruity | |
| Mosciano, Gerard P&F 15, No. 4, 59, (1990) | At 40.00 ppm. Citrus, floral, musty, tea like with green sweet fruity nuances |
| General comment | Citrus floral musty tea green sweet fruity |
Occurrences
| (data available) |
Potential Uses
| Applications | |
| Odor purposes | Amber, Balsam, Cherry, Citrus, Honey, Oriental, Patchouli, Raspberry, Tobacco, Woody |
| Flavoring purposes | Molasses, Tea |
| Other purposes | Ozone |
| Cosmetic purposes | Perfuming agents |
Safety Information
Safety information
| Preferred SDS: View | |
| European information : | |
| Most important hazard(s): | |
| Xn - Harmful. | |
| R 22 - Harmful if swallowed. R 38 - Irritating to skin. R 43 - May cause sensitisation by skin contact. S 02 - Keep out of the reach of children. S 20/21 - When using do not eat, drink or smoke. S 24/25 - Avoid contact with skin and eyes. S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 37/39 - Wear suitable gloves and eye/face protection. | |
| Hazards identification | |
| Classification of the substance or mixture | |
| GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) | |
| None found. | |
| GHS Label elements, including precautionary statements | |
| Pictogram | |
| Hazard statement(s) | |
| None found. | |
| Precautionary statement(s) | |
| None found. | |
| Oral/Parenteral Toxicity: | |
| Not determined | |
| Dermal Toxicity: | |
| Not determined | |
| Inhalation Toxicity: | |
| Not determined | |
Safety in use information
| 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 | |||
| Recommendation for ketoisophorone usage levels up to: | |||
| 2.0000 % in the fragrance concentrate. | |||
| Maximised Survey-derived Daily Intakes (MSDI-EU): | 50.00 (μg/capita/day) | ||
| Modified Theoretical Added Maximum Daily Intake (mTAMDI): | 1900 (μg/person/day) | ||
| Threshold of Concern: | 540 (μg/person/day) | ||
| Structure Class: | II | ||
| 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: 7 | |||
| Click here to view publication 7 | |||
| average usual ppm | average maximum ppm | ||
| baked goods: | - | - | |
| beverages(nonalcoholic): | - | 1.00000 | |
| beverages(alcoholic): | - | - | |
| breakfast cereal: | - | - | |
| cheese: | - | - | |
| chewing gum: | - | - | |
| condiments / relishes: | - | - | |
| confectionery froastings: | - | - | |
| egg products: | - | - | |
| fats / oils: | - | - | |
| fish products: | - | - | |
| frozen dairy: | - | - | |
| fruit ices: | - | - | |
| gelatins / puddings: | - | - | |
| granulated sugar: | - | - | |
| gravies: | - | - | |
| hard candy: | - | 5.00000 | |
| 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: | - | - | |
| Food categories according to Commission Regulation EC No. 1565/2000 (EC, 2000) in FGE.06 (EFSA, 2002a). According to the Industry the "normal" use is defined as the average of reported usages and "maximum use" is defined as the 95th percentile of reported usages (EFSA, 2002i). | |||
| Note: mg/kg = 0.001/1000 = 0.000001 = 1/1000000 = ppm. | |||
| average usage mg/kg | maximum usage mg/kg | ||
| Dairy products, excluding products of category 02.0 (01.0): | 7.00000 | 35.00000 | |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0): | 2.00000 | 10.00000 | |
| Edible ices, including sherbet and sorbet (03.0): | 3.00000 | 15.00000 | |
| Processed fruit (04.1): | 2.00000 | 10.00000 | |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): | - | - | |
| Confectionery (05.0): | 4.00000 | 20.00000 | |
| Chewing gum (05.3): | - | - | |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): | - | - | |
| Bakery wares (07.0): | 5.00000 | 25.00000 | |
| Meat and meat products, including poultry and game (08.0): | 1.00000 | 5.00000 | |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): | 1.00000 | 5.00000 | |
| Eggs and egg products (10.0): | - | - | |
| Sweeteners, including honey (11.0): | - | - | |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0): | 2.00000 | 10.00000 | |
| Foodstuffs intended for particular nutritional uses (13.0): | 3.00000 | 15.00000 | |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1): | 2.00000 | 10.00000 | |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): | 4.00000 | 20.00000 | |
| Ready-to-eat savouries (15.0): | 5.00000 | 25.00000 | |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): | 2.00000 | 10.00000 | |
Safety references
| 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 |
| List of apha, beta-Unsaturated Aldehydes and Ketones representative of FGE.19 substances for Genotoxicity Testing [1] - Statement of the Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF) View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 73, Revision 3 (FGE.73Rev3): Consideration of alicyclic alcohols, aldehydes, acids and related esters evaluated by JECFA (59th and 63rd meeting) structurally related to primary saturated or unsaturated alicyclic alcohols, aldehydes, acids and esters evaluated by EFSA in FGE.12Rev4 (2013) View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 9, Revision 5 (FGE.09Rev5): Secondary alicyclic saturated and unsaturated alcohols, ketones and esters containing secondary alicyclic alcohols from chemical group 8 and 30, and an ester of a phenol derivative from chemical group 25 View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 87, Revision 2 (FGE.87Rev2): Consideration of bicyclic secondary alcohols, ketones and related esters evaluated by JECFA (63rd meeting) structurally related to bicyclic secondary alcohols, ketones and related esters evaluated by EFSA in FGE.47Rev1 (2008) View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 9, Revision 6 (FGE.09Rev6): Secondary alicyclic saturated and unsaturated alcohols, ketones and esters containing secondary alicyclic alcohols from chemical group 8 and 30, and an ester of a phenol derivative from chemical group 25 View page or View pdf |
| Scientific Opinion on Flavouring Group Evaluation 213, Revision 2 (FGE.213Rev2): Consideration of genotoxic potential for a,ß-unsaturated alicyclic ketones and precursors from chemical subgroup 2.7 of FGE.19 View page or View pdf |
| Safety and efficacy of secondary aliphatic saturated or unsaturated alcohols, ketones, ketals and esters with a second secondary or tertiary oxygenated functional group belonging to chemical group 10 when used as flavourings for all animal species View page or View pdf |
| EPI System: View |
| AIDS Citations:Search |
| Cancer Citations:Search |
| Toxicology Citations:Search |
| EPA Substance Registry Services (TSCA):1125-21-9 |
| EPA ACToR:Toxicology Data |
| EPA Substance Registry Services (SRS):Registry |
| Laboratory Chemical Safety Summary :62374 |
| National Institute of Allergy and Infectious Diseases:Data |
| WISER:UN 2811 |
| WGK Germany:3 |
| 2,6,6-trimethylcyclohex-2-ene-1,4-dione |
| Chemidplus:0001125219 |