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5-ethyl-2-methyl thiazole
5-ethyl-2-methylthiazole

Supplier Sponsors

Name:5-ethyl-2-methyl-1,3-thiazole
CAS Number: 19961-52-5Picture of molecule3D/inchi
FDA UNII: 3QA6DD1325
Nikkaji Web:J437.617J
XlogP3-AA:2.20 (est)
Molecular Weight:127.20973000
Formula:C6 H9 N S
NMR Predictor:Predict (works with chrome, Edge or firefox)
Category:flavoring agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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JECFA Food Flavoring:2113 5-ethyl-2-methylthiazole
DG SANTE Food Flavourings:15.068 5-ethyl-2-methylthiazole
FEMA Number:4388 5-ethyl-2-methylthiazole
FDA:No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm (SATF):19961-52-5 ; 5-ETHYL-2-METHYLTHIAZOLE
 
Physical Properties:
Appearance:colorless liquid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Specific Gravity:1.02600 to 1.03600 @ 20.00 °C.
Pounds per Gallon - (est).: 8.547 to 8.631
Refractive Index:1.50100 to 1.51100 @ 20.00 °C.
Melting Point: 80.00 °C. @ 760.00 mm Hg
Boiling Point: 170.00 °C. @ 760.00 mm Hg
Vapor Pressure:1.705000 mmHg @ 25.00 °C. (est)
Flash Point: 134.00 °F. TCC ( 56.67 °C. )
logP (o/w): 1.427 (est)
Soluble in:
 water, 591.9 mg/L @ 25 °C (est)
 
Organoleptic Properties:
Odor Description:chocolate fishy pyrazine
Flavor Type: alliaceous
burnt alliaceous metallic acrylate
Taste Description: burnt alliaceous metallic acrylate
Odor and/or flavor descriptions from others (if found).
 
Cosmetic Information:
None found
 
Suppliers:
Axsyn
For experimental / research use only.
Thiazole,5-ethyl-2-methyl-
Parchem
5-ethyl-2-methyl thiazole
Penta International
5-ETHYL-2-METHYLTHIAZOLE
 
Safety Information:
 
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:
flavoring agents
Recommendation for 5-ethyl-2-methyl thiazole usage levels up to:
 not for fragrance use.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.0061 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 220 (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: 23
Click here to view publication 23
 average usual ppmaverage maximum ppm
baked goods: --
beverages(nonalcoholic): --
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: --
condiments / relishes: 0.010002.00000
confectionery froastings: 0.010001.00000
egg products: --
fats / oils: --
fish products: --
frozen dairy: 0.010002.00000
fruit ices: --
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: 0.010001.00000
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: 0.010001.00000
soups: 0.010002.00000
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/kgmaximum usage mg/kg
Dairy products, excluding products of category 02.0 (01.0): 0.400002.00000
Fats and oils, and fat emulsions (type water-in-oil) (02.0): 0.200001.00000
Edible ices, including sherbet and sorbet (03.0): 0.400002.00000
Processed fruit (04.1): 0.300001.50000
Processed vegetables (incl. mushrooms & fungi, roots & tubers, pulses and legumes), and nuts & seeds (04.2): --
Confectionery (05.0): 0.400002.00000
Chewing gum (05.3): --
Cereals and cereal products, incl. flours & starches from roots & tubers, pulses & legumes, excluding bakery (06.0): 0.200001.00000
Bakery wares (07.0): 0.400002.00000
Meat and meat products, including poultry and game (08.0): 0.100000.40000
Fish and fish products, including molluscs, crustaceans and echinoderms (MCE) (09.0): 0.100000.40000
Eggs and egg products (10.0): --
Sweeteners, including honey (11.0): --
Salts, spices, soups, sauces, salads, protein products, etc. (12.0): 0.200001.00000
Foodstuffs intended for particular nutritional uses (13.0): 0.400002.00000
Non-alcoholic ("soft") beverages, excl. dairy products (14.1): 0.200001.00000
Alcoholic beverages, incl. alcohol-free and low-alcoholic counterparts (14.2): 0.400002.00000
Ready-to-eat savouries (15.0): --
Composite foods (e.g. casseroles, meat pies, mincemeat) - foods that could not be placed in categories 01.0 - 15.0 (16.0): 0.200001.00000
 
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 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

Flavouring Group Evaluation 93 (FGE.93): Consideration of sulphur heterocyclic evaluated by JECFA (68th meeting) structurally related to thiazoles, thiophene, thiazoline and thienyl evaluated by EFSA in FGE.21Rev1 (2009)
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 21, Revision 2 (FGE.21Rev2): 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 21, Revision 3 (FGE.21Rev3): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 21, Revision 4 (FGE.21Rev4): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 21, Revision 5 (FGE.21Rev5): Thiazoles, thiophenes, thiazoline and thienyl derivatives from chemical groups 29 and 30
View page or View pdf

EPI System: View
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EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :519732
National Institute of Allergy and Infectious Diseases:Data
5-ethyl-2-methyl-1,3-thiazole
Chemidplus:0019961525
 
References:
 5-ethyl-2-methyl-1,3-thiazole
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):519732
Pubchem (sid):135277592
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):HMDB40096
FooDB:FDB019783
YMDB (Yeast Metabolome Database):YMDB01509
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
 
Potential Blenders and core components note
None Found
 
Potential Uses:
None Found
 
Occurrence (nature, food, other):note
 chicken roasted chicken - trace amount
Search PMC Picture
 coffee
Search PMC Picture
 pork cooked pork
Search PMC Picture
 yeast extract
Search Picture
 
Synonyms:
5-ethyl-2-methyl-1,3-thiazole
5-ethyl-2-methylthiazole
 thiazole, 5-ethyl-2-methyl-
 thiazole,5-ethyl-2-methyl-
 
 
Notes:
Volatile component of coffee aroma, fried chicken, cooked pork and yeast extract
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