2-acetyl-5-methyl thiophene
1-(5-methylthiophen-2-yl)ethanone
Identification
| Name | 2-acetyl-5-methyl thiophene |
| IUPAC | 1-(5-methylthiophen-2-yl)ethanone |
| CAS Number | 13679-74-8 |
| EINECS | 237-181-2 |
| FDA UNII | 2HS3I278W9 |
| Molecular Formula | C7 H8 O S |
| Molecular Weight | 140.20496000 |
| MDL Number | MFCD00014529 |
| Nikkaji Number | J45.610A |
| Beilstein | 0110854 |
Regulatory
| JECFA Food Flavoring | 2107 2-acetyl-5-methylthiophene |
| FEMA Number | 4643 |
| FDA | No longer provide for the use of these seven synthetic flavoring substances |
| FDA Mainterm (SATF) | 13679-74-8 ; 2-ACETYL-5-METHYLTHIOPHENE |
Physical Properties
| Appearance | colorless to pale yellow liquid to crystalline powder (est) |
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 1.12000 to 1.13000 @ 20.00 °C. |
| Pounds per Gallon - (est). | 9.330 to 9.414 |
| Refractive Index | 1.55700 to 1.56700 @ 20.00 °C. |
| Melting Point | 24.00 to 28.00 °C. @ 760.00 mm Hg |
| Boiling Point | 232.00 to 234.00 °C. @ 760.00 mm Hg, 65.00 to 67.00 °C. @ 1.00 mm Hg |
| Vapor Pressure | 0.052000 mmHg @ 25.00 °C. (est) |
| Flash Point | 204.00 °F. TCC ( 95.56 °C. ) |
| logP (o/w) | 1.345 (est) |
| Soluble in | alcohol |
| Insoluble in | water |
| Similar Items | note |
Organoleptic Properties
| Odor Strength | high , |
| Substantivity | 11 hour(s) at 100.00 % |
| Odor Description | at 1.00 % in propylene glycol. |
| Odor sample from | R C Treatt and Co Ltd |
| Taste Description | sweet floral green nutty almond honey acacia caramellic hawthorn |
Safety Information
| Preferred SDS | View |
| European information | Most important hazard(s): |
| Oral/Parenteral Toxicity | intraperitoneal-mouse LD50 230 mg/kg |
| 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-5-methyl thiophene usage levels up to | not for fragrance use. |
| baked goods | 0.00500 |
| beverages(nonalcoholic) | 0.00100 |
| 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 | - |
| imitation dairy | - |
| instant coffee / tea | 0.00100 |
| 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 | 0.00300 |
Beijing Lys Chemicals Co, LTD.
From Grams to Tons
Fine chemical high-tech company which contains R&D, production, and sales.
BOC Sciences
Best of Chemicals Supplier
Quality supplier of research chemicals and biochemicals including inhibitors, building blocks, GMP Products, impurities and metabolites, APIs for Veterinary, Natural Compounds, ADCs, Stem Cell Molecul...
Endeavour Specialty Chemicals Ltd
Expertise in high impact aroma chemicals
Endeavour Speciality Chemicals offers high-impact aroma chemicals, at small to medium scale.
Penta International Corporation
Chemistry innovation
At Penta, our products and services help businesses do business better.
Robinson Brothers Limited
Providing Excellence in Chemistry
Award-winning UK chemical manufacturer of chemical intermediates and high-impact aroma chemicals.
Tianjin Danjun International Trade Co., LTD.
Quality Products
We know the Chinese chemical market well.
R C Treatt and Co Ltd
Innovative ingredient solutions
World-leading innovative ingredient solutions provider for the flavour, fragrance and FMCG industries.
WholeChem, LLC
Connecting Innovators To the Building Blocks Of the Universe
Custom manufacturer and distributor of specialty ingredients. We make global local.