2-acetyl-2-thiazoline
1-(4,5-dihydrothiazol-2-yl)ethanone
Identification
| Name | 2-acetyl-2-thiazoline |
| IUPAC | 1-(4,5-dihydro-1,3-thiazol-2-yl)ethanone |
| CAS Number | 29926-41-8 |
| FDA UNII | TI3K1Q5Y1T |
| Molecular Formula | C5 H7 N O S |
| Molecular Weight | 129.18199000 |
| MDL Number | MFCD00209496 |
| Nikkaji Number | J668.744J |
| CoE Number | 2335 |
Regulatory
| JECFA Food Flavoring | 1759 2-acetyl-2-thiazoline |
| DG SANTE Food Flavourings | 15.010 2-acetyl-2-thiazoline |
| FEMA Number | 3817 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 29926-41-8 ; 2-ACETYL-2-THIAZOLINE |
Physical Properties
| Appearance | dark yellow orange brown liquid to solid (est) |
| Assay | 98.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 1.16000 to 1.17000 @ 25.00 °C. |
| Pounds per Gallon - (est). | 9.652 to 9.736 |
| Refractive Index | 1.52740 to 1.52840 @ 20.00 °C. |
| Melting Point | 27.00 °C. @ 760.00 mm Hg |
| Boiling Point | 222.00 to 223.00 °C. @ 760.00 mm Hg |
| Vapor Pressure | 0.094200 mmHg @ 25.00 °C. |
| Flash Point | 198.00 °F. TCC ( 92.22 °C. ) |
| logP (o/w) | -0.890 |
| Shelf Life | 24.00 month(s) or longer if stored properly. |
| Storage | store in cool, dry place in tightly sealed containers, protected from heat and light. |
| Soluble in | alcohol |
| Insoluble in | water |
| Similar Items | note |
Organoleptic Properties
| Odor Description |
at 0.10 % in propylene glycol. at 1.00 % in ethyl alcohol. corn chip taco potato chip toasted bread nutty
|
| Odor sample from | Sigma-Aldrich |
| Taste Description |
at 1.00 - 5.00 ppm. baked bread crust, roasted
|
Safety Information
| Preferred SDS | View |
| 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 | flavoring agents |
| Recommendation for 2-acetyl-2-thiazoline usage levels up to | not for fragrance use. |
| Maximised Survey-derived Daily Intakes (MSDI-EU) | 0.51 (μg/capita/day) |
| Maximised Survey-derived Daily Intakes (MSDI-USA) | ND (μg/capita/day) |
| Modified Theoretical Added Maximum Daily Intake (mTAMDI) | 810 (μg/person/day) |
| Threshold of Concern | 540 (μg/person/day) |
| Structure Class | II |
| baked goods | 0.02000 |
| beverages(nonalcoholic) | - |
| beverages(alcoholic) | - |
| breakfast cereal | 0.01000 |
| cheese | - |
| chewing gum | 0.05000 |
| condiments / relishes | - |
| confectionery froastings | 0.01000 |
| egg products | - |
| fats / oils | 0.01000 |
| fish products | 0.02000 |
| frozen dairy | - |
| fruit ices | - |
| gelatins / puddings | - |
| granulated sugar | - |
| gravies | 0.02000 |
| hard candy | 0.01000 |
| imitation dairy | - |
| instant coffee / tea | - |
| jams / jellies | - |
| meat products | 0.02000 |
| milk products | - |
| nut products | - |
| other grains | 0.01000 |
| poultry | 0.02000 |
| processed fruits | - |
| processed vegetables | - |
| reconstituted vegetables | - |
| seasonings / flavors | - |
| snack foods | 0.05000 |
| soft candy | 0.01000 |
| soups | 0.02000 |
| sugar substitutes | - |
| sweet sauces | - |
| 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) | 0.20000 |
| 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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