2,4,5-trimethyl oxazole
2,4,5-trimethyloxazole
Identification
| Name | 2,4,5-trimethyl oxazole |
| IUPAC | 2,4,5-trimethyl-1,3-oxazole |
| CAS Number | 20662-84-4 |
| EINECS | 243-952-4 |
| FDA UNII | B04PF51WXI |
| Molecular Formula | C6 H9 N O |
| Molecular Weight | 111.14393000 |
| MDL Number | MFCD00005308 |
| Nikkaji Number | J40.167F |
| CoE Number | 11424 |
Regulatory
| JECFA Food Flavoring | 1553 trimethyloxazole |
| DG SANTE Food Flavourings | 13.169 trimethyloxazole |
| FEMA Number | 4394 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 20662-84-4 ; TRIMETHYLOXAZOLE |
Physical Properties
| Appearance | colorless to pale yellow clear liquid (est) |
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 0.95600 to 0.96400 @ 25.00 °C. |
| Pounds per Gallon - (est). | 7.955 to 8.021 |
| Refractive Index | 1.43800 to 1.44600 @ 20.00 °C. |
| Boiling Point | 133.00 to 134.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 10.394000 mmHg @ 25.00 °C. (est) |
| Vapor Density | 3.8 ( Air = 1 ) |
| Flash Point | 92.00 °F. TCC ( 33.33 °C. ) |
| logP (o/w) | 1.206 (est) |
| Soluble in | alcohol |
| Insoluble in | water |
Organoleptic Properties
| Odor Strength | medium , |
| Substantivity | < 1 hour(s) at 100.00 % |
| Odor Description |
at 100.00 %. Nutty, sweet, green
|
| Odor sample from | R C Treatt and Co Ltd |
| Taste Description |
burnt nutty hazelnut oily nut skin potato earthy mushroom earthy potato-like and mushroom
|
Safety Information
| Preferred SDS | View |
| European information | Most important hazard(s): |
| Oral/Parenteral Toxicity | Not determined |
| Dermal Toxicity | Not determined |
| Inhalation Toxicity | Not determined |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | flavor and fragrance agents |
| RIFM Fragrance Material Safety Assessment | Search |
| Recommendation for 2,4,5-trimethyl oxazole usage levels up to | 0.3000 % in the fragrance concentrate. |
| Maximised Survey-derived Daily Intakes (MSDI-EU) | 3.70 (μg/capita/day) |
| Maximised Survey-derived Daily Intakes (MSDI-USA) | 1.00 (μg/capita/day) |
| Modified Theoretical Added Maximum Daily Intake (mTAMDI) | 96 (μg/person/day) |
| Threshold of Concern | 540 (μg/person/day) |
| baked goods | 0.40000 |
| beverages(nonalcoholic) | 0.20000 |
| beverages(alcoholic) | - |
| breakfast cereal | 0.20000 |
| cheese | 0.40000 |
| chewing gum | - |
| condiments / relishes | 0.20000 |
| confectionery froastings | 0.40000 |
| egg products | - |
| fats / oils | 0.20000 |
| fish products | 0.10000 |
| frozen dairy | 0.40000 |
| fruit ices | 0.40000 |
| gelatins / puddings | 1.00000 |
| granulated sugar | - |
| gravies | 1.00000 |
| hard candy | - |
| imitation dairy | 0.40000 |
| instant coffee / tea | - |
| jams / jellies | 1.00000 |
| meat products | 0.10000 |
| milk products | 0.40000 |
| nut products | - |
| other grains | 0.20000 |
| poultry | 0.10000 |
| processed fruits | 0.30000 |
| processed vegetables | - |
| reconstituted vegetables | - |
| seasonings / flavors | 0.20000 |
| snack foods | 0.20000 |
| soft candy | - |
| soups | 0.20000 |
| sugar substitutes | - |
| sweet sauces | 0.20000 |
| Dairy products, excluding products of category 02.0 (01.0) | 0.40000 |
| Fats and oils, and fat emulsions (type water-in-oil) (02.0) | 0.20000 |
| Edible ices, including sherbet and sorbet (03.0) | 0.40000 |
| Processed fruit (04.1) | 0.30000 |
| Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2) | - |
| Confectionery (05.0) | 0.40000 |
| Chewing gum (05.3) | - |
| Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0) | 0.20000 |
| Bakery wares (07.0) | 0.40000 |
| Meat and meat products, including poultry and game (08.0) | 0.10000 |
| Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0) | 0.10000 |
| Eggs and egg products (10.0) | - |
| Sweeteners, including honey (11.0) | - |
| Salts, spices, soups, sauces, salads, protein products, etc. (12.0) | 0.20000 |
| Foodstuffs intended for particular nutritional uses (13.0) | 0.40000 |
| Non-alcoholic ("soft") beverages, excl. dairy products (14.1) | - |
| Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2) | 0.40000 |
| Ready-to-eat savouries (15.0) | 1.00000 |
| Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0) | 0.20000 |
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