Preferred name | 2-methyl-5-methoxythiazole |
Trivial Name | 2-Methyl-5-methoxythiazole |
Short Description | thiazole, 5-methoxy-2-methyl- |
Formula | C5 H7 N O S |
CAS Number | 38205-64-0 |
FEMA Number | 3192 |
Flavis Number | 15.002 |
FDA UNII | 154Z60090O |
Nikkaji Number | J59.611F |
Beilstein Number | 1209888 |
COE Number | 736 |
xLogP3-AA | 1.70 (est) |
NMR Predictor | External link |
JECFA Food Flavoring | 1057 2-methyl-5-methoxythiazole |
FDA Patent | No longer provide for the use of these seven synthetic flavoring substances |
FDA Mainterm | 38205-64-0 ; 2-METHYL-5-METHOXYTHIAZOLE |
Synonyms |
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Google Scholar | Start search |
Google Books | Start search |
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Perfumer & Flavorists | Start search |
EU Patents | Start search |
PubMeb | Start search |
NCBI | Start search |
(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): | HMDB37178 |
FooDB: | FDB016176 |
Export Tariff Code: | 2934.10.0000 |
ChemSpider: | View |
Material listed in food chemical codex | No |
Molecular weight | 129.18199157715 |
Specific gravity | @ 25 °C |
Pounds per Gallon | 9.536 to 9.602 |
Refractive Index | 1.515 to 1.52 @ 20 °C |
Vapor Pressure | 1.085 mmHg @ 25 °C |
Flash Point TCC Value | 63.89 °C TCC |
logP (o/w) | 0.336 est |
Solubility | |
alcohol | Yes |
water, 3822 mg/L @ 25 °C (est) | Yes |
water | No |
Odor Type: Sulfurous | |
green, cabbage, vegetable, sulfurous | |
General comment | At 0.10 % in dipropylene glycol. green cabbage vegetable sulfurous |
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: | |
oral-rat LD50 1250 mg/kg (Posternak et al., 1975) oral-rat LD50 1250 mg/kg Food and Cosmetics Toxicology. Vol. 13, Pg. 487, 1975. | |
Dermal Toxicity: | |
Not determined | |
Inhalation Toxicity: | |
Not determined |
Category: | |||
flavoring agents | |||
Recommendation for 2-methyl-5-methoxythiazole usage levels up to: | |||
not for fragrance use. | |||
Maximised Survey-derived Daily Intakes (MSDI-EU): | 0.012 (μg/capita/day) | ||
Maximised Survey-derived Daily Intakes (MSDI-USA): | 0.01 (μg/capita/day) | ||
Structure Class: | III | ||
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: 4 | |||
Click here to view publication 4 | |||
average usual ppm | average maximum ppm | ||
baked goods: | - | 4.00000 | |
beverages(nonalcoholic): | - | 2.00000 | |
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: | - | - | |
imitation dairy: | - | - | |
instant coffee / tea: | - | - | |
jams / jellies: | - | - | |
meat products: | - | 2.00000 | |
milk products: | - | - | |
nut products: | - | - | |
other grains: | - | - | |
poultry: | - | - | |
processed fruits: | - | - | |
processed vegetables: | - | - | |
reconstituted vegetables: | - | - | |
seasonings / flavors: | - | - | |
snack foods: | - | - | |
soft candy: | - | - | |
soups: | - | 2.00000 | |
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 21: Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29. Miscellaneous substances from chemical group 30. (Commission Regulation (EC) No 1565/2000 of 18 July 2000) - Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) View page or View pdf |
Flavouring Group Evaluation 76, (FGE.76)[1] - Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29, miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21 - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food View page or View pdf |
Flavouring Group Evaluation 21, Revision 1 (FGE.21Rev1): Thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29 Miscellaneous substances from chemical group 30 View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 96 (FGE.96): Consideration of 88 flavouring substances considered by EFSA for which EU production volumes / anticipated production volumes have been submitted on request by DG SANCO. Addendum to FGE. 51, 52, 53, 54, 56, 58, 61, 62, 63, 64, 68, 69, 70, 71, 73, 76, 77, 79, 80, 83, 84, 85 and 87. View page or View pdf |
Scientific Opinion on Flavouring Group Evaluation 76, Revision 1 (FGE.76Rev1): Consideration of sulphur-containing heterocyclic compounds evaluated by JECFA (59th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl derivatives from chemical group 29 and miscellaneous substances from chemical group 30 evaluated by EFSA in FGE.21Rev3 View page or View pdf |
EPI System: View |
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EPA Substance Registry Services (TSCA):38205-64-0 |
EPA ACToR:Toxicology Data |
EPA Substance Registry Services (SRS):Registry |
Laboratory Chemical Safety Summary :61976 |
National Institute of Allergy and Infectious Diseases:Data |
5-methoxy-2-methyl-1,3-thiazole |
Chemidplus:0038205640 |