EU/US Properties Organoleptics Cosmetics Suppliers Safety Safety in use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes
 

2-acetyl-4-methyl thiazole
1-(4-methyl-1,3-thiazol-2-yl)ethanone

Supplier Sponsors

Name:1-(4-methyl-1,3-thiazol-2-yl)ethanone
CAS Number: 7533-07-5Picture of molecule3D/inchi
Nikkaji Web:J346.160B
MDL:MFCD07369793
CoE Number:11589
XlogP3-AA:1.40 (est)
Molecular Weight:141.19299000
Formula:C6 H7 N O S
NMR Predictor:Predict (works with chrome or firefox)
Category:flavoring agents
 
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
Google Scholar:Search
Google Books:Search
Google Scholar: with word "volatile"Search
Google Scholar: with word "flavor"Search
Google Scholar: with word "odor"Search
Perfumer and Flavorist:Search
Google Patents:Search
US Patents:Search
EU Patents:Search
Pubchem Patents:Search
DG SANTE Food Flavourings:15.038 2-acetyl-4-methylthiazole
 
Physical Properties:
Appearance:white to beige solid (est)
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Melting Point: 34.00 °C. @ 760.00 mm Hg
Boiling Point: 233.93 °C. @ 760.00 mm Hg (est)
Vapor Pressure:0.054000 mmHg @ 25.00 °C. (est)
Flash Point: 194.00 °F. TCC ( 90.00 °C. )
logP (o/w): 0.831 (est)
Shelf Life: 12.00 month(s) or longer if stored properly.
Storage:store in cool, dry place in tightly sealed containers, protected from heat and light.
Soluble in:
 water, 7504 mg/L @ 25 °C (est)
Similar Items:note
2-acetyl-5-methyl thiazole
 
Organoleptic Properties:
Odor Strength:high ,
recommend smelling in a 0.10 % solution or less
cooked meaty
Odor Description:at 0.10 % in propylene glycol. cooked meat
Flavor Type: nutty
nutty burnt
Taste Description: at 20.00 ppm. nutty burnt
Odor and/or flavor descriptions from others (if found).
 
Cosmetic Information:
None found
 
Suppliers:
BOC Sciences
For experimental / research use only.
2-Acetyl-4-methylthiazole, 97%
Santa Cruz Biotechnology
For experimental / research use only.
2-Acetyl-4-methylthiazole
Sigma-Aldrich: Aldrich
For experimental / research use only.
2-Acetyl-4-methylthiazole 97%
 
Safety Information:
Preferred SDS: View
European information :
Most important hazard(s):
Xn - Harmful.
R 22 - Harmful if swallowed.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 36/37/39 - Wear suitable clothing, gloves and eye/face protection.
 
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 2-acetyl-4-methyl thiazole usage levels up to:
 not for fragrance use.
 
Maximised Survey-derived Daily Intakes (MSDI-EU): 0.0049 (μg/capita/day)
Modified Theoretical Added Maximum Daily Intake (mTAMDI): 160 (μg/person/day)
Threshold of Concern:540 (μg/person/day)
Structure Class: II
 
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): 1.000005.00000
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
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :5324797
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:3
1-(4-methyl-1,3-thiazol-2-yl)ethanone
 
References:
 1-(4-methyl-1,3-thiazol-2-yl)ethanone
NIST Chemistry WebBook:Search Inchi
Pubchem (cid):5324797
Pubchem (sid):125631839
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
HMDB (The Human Metabolome Database):Search
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
 
Potential Blenders and core components note
For Odor
alliaceous
dimethyl trisulfide
FL/FR
burnt
rum ether
FL/FR
caramellic
strawberry furanone
FL/FR
chocolate
2,6-
dimethyl pyrazine
FL/FR
coffee
coffee difuran
FL/FR
furfuryl mercaptan
FL/FR
2-
methyl-3-,5 or 6-(furfuryl thio) pyrazine
FL/FR
fresh
10-
undecen-1-yl acetate
FL/FR
fruity
3-
mercaptohexyl acetate
FL/FR
(E)-7-
methyl-3-octen-2-one
FL/FR
prunus amygdalus amara seed extract
FL/FR
(E)-2-
undecenal
FL/FR
green
(E,Z)-2,6-
nonadienal
FL/FR
meaty
meaty dithiane
FL/FR
4-
methyl nonanoic acid
FL/FR
sulfurol
FL/FR
sulfuryl acetate
FL/FR
moldy
strawberry furanone methyl ether
FL/FR
musty
hazelnut pyrazine
FL/FR
nutty
4,5-
dimethyl-2-ethyl-3-thiazoline
FL/FR
2-
ethyl-4-methyl thiazole
FL/FR
filbert heptenone
FL/FR
2,6-
lutidine
FL/FR
2-
methyl pyrazine
FL/FR
2-
methyl-3-(methyl thio) pyrazine
FL/FR
2,4,5-
trimethyl oxazole
FL/FR
roasted
trigonella foenum-graecum seed oil CO2 extract
FL/FR
smoky
2,6-
dimethoxyphenol
FL/FR
pyroligneous acids
FL/FR
sulfurous
benzothiazole
FL/FR
ethyl 3-mercaptopropionate
FL/FR
fish thiol
FL/FR
furfuryl thioacetate
FL/FR
2-
mercaptopropionic acid
FL/FR
4-
methyl 4-mercaptopentan-2-one 1% solution
FL/FR
methyl mercaptan
FL/FR
2-(
methyl thio) phenol
FL/FR
1-
phenethyl mercaptan
FL/FR
tobacco
methyl benzoxole
FL/FR
For Flavor
No flavor group found for these
4-
acetyl-2-methyl pyrimidine
FL
gamma-
aminobutyric acid
FL
amyl mercaptan
FL
1,2-
butane dithiol
FL
2-(2-
butyl)-4,5-dimethyl-3-thiazoline
FL
cyclopropyl (E,Z)-2,6-nonadienamide
FL
2,5-
diethyl thiazole
FL
dimethyl tetrasulfide
FL
2,6-
dimethyl-3-((2-methyl-3-furyl)thio)-4-heptanone
FL
bis(2,5-
dimethyl-3-furyl) disulfide
FL
(Z+E)-2,5-
dimethyl-3-tetrahydrofuran thiol
FL
(Z+E)-2,5-
dimethyl-3-thioacetoxytetrahydrofuran
FL
2,5-
dimethyl-3-thiofuroyl furan
FL
ethyl (E,Z)-2,6-nonadienamide
FL
S-
ethyl 2-acetyl aminoethane thioate
FL
ethyl 3-mercaptopropionate
FL/FR
ethyl 4-(acetyl thio) butyrate
FL
2-
ethyl-3-methyl thiopyrazine
FL
(Z+E)-5-
ethyl-4-methyl-2-(2-butyl) thiazoline
FL
(Z+E)-5-
ethyl-4-methyl-2-(2-methyl propyl) thiazoline
FL
1-(3-
hydroxy-5-methyl-2-thienyl) ethanone
FL
massoia bark oil
FL
4-
methyl 4-mercaptopentan-2-one 1% solution
FL/FR
methyl dihydrofuran thiol
FL
2-
methyl thiazolidine
FL
2-(
methyl thio) ethanol
FL
2-
methyl-3-,5 or 6-(furfuryl thio) pyrazine
FL/FR
2-
methyl-3-(methyl thio) pyrazine
FL/FR
2-
methyl-3-furyl tetrasulfide
FL
3-((2-
methyl-3-furyl)thio)-4-heptanone
FL
4-((2-
methyl-3-furyl)thio)-5-nonanone
FL
1,9-
nonane dithiol
FL
peanut dithiazine
FL
1-
phenethyl mercaptan
FL/FR
1,3-
propane dithiol
FL
propyl 2-methyl-3-furyl disulfide
FL
iso
propyl disulfide
FL
thiazole
FL
3-
thienyl mercaptan
FL
thioacetic acid
FL
N-(2-(3,4-
dimethoxyphenyl)ethyl)-3,4-dimethoxycinnamic acid amide
FL
3,5-
dimethyl-1,2,4-trithiolane
FL
3,7-
dimethyl-2,6-octadien-1-yl cyclopropyl carboxamide
FL
4-
mercapto-2-pentanone 1% in acetoin
FL
2-
methyl-1-methyl thio-2-butene
FL
3-
methyl-1,2,4-trithiane
FL
pyrrolidino-(1,2E)-4H-2,4-dimethyl-1,3,5-dithiazine
FL
1-(2-
thienyl) butanone
FL
alliaceous
alliaceous
allyl disulfide
FL
allyl mercaptan
FL
1,3-
butane dithiol
FL
cyclopentyl mercaptan
FL
dicyclohexyl disulfide
FL
dimethyl trisulfide
FL/FR
garlic oil extenders
FL
3-
mercapto-2-pentanone
FL
3-
tetrahydrothiophenone
FL
bacon
bacon reaction crispy
FL
burnt
bacon dithiazine
FL
1,6-
hexane dithiol
FL
rum ether
FL/FR
2,4,5-
trimethyl oxazole
FL/FR
caramellic
strawberry furanone
FL/FR
chemical
2,5-
dimethyl furan
FL
cocoa
butyraldehyde
FL
coffee
coffee difuran
FL/FR
coffee distillates
FL
2-
ethyl-4-methyl thiazole
FL/FR
furfuryl mercaptan
FL/FR
methyl furfuryl mercaptopropionate
FL
methyl furfuryl thiol
FL
earthy
difurfuryl sulfide
FL
(±)-2-
mercapto-5-methylheptan-4-one
FL
1,8-
octane dithiol
FL
2-
thienyl disulfide
FL
eggy
iso
propyl mercaptan
FL
fatty
(E,E)-2,4-
decadienal
FL
pork
fat extract
FL
4-
methyl nonanoic acid
FL/FR
(E)-7-
methyl-3-octen-2-one
FL/FR
2-
pentyl thiophene
FL
fruity
2-
ethyl-2,5-dihydro-4-methyl thiazole
FL
greasy
10-
undecen-1-yl acetate
FL/FR
green
4-
methyl thiazole
FL
(E,Z)-2,6-
nonadienal
FL/FR
4-
penten-1-yl acetate
FL
2-
vinyl pyrazine
FL
meaty
4-
allyl-2,6-dimethoxyphenol
FL
bacon flavor
FL
beef broth flavor
FL
beef flavor
FL
roast
beef flavor
FL
BBQ
beef flavor
FL
beef flavor base
FL
benzothiazole
FL/FR
chicken bone extract
FL
chicken extract
FL
grilled
chicken flavor
FL
chicken flavor
FL
chicken key
FL
2,6-
dimethyl thiophenol
FL
2,5-
dimethyl-3-furan thiol
FL
2',3-
dimethyl-3',4-dioxa-2,8-dithiabicyclo(3.3.0)octane spirocyclopentane
FL
1,1-
ethane dithiol 1% in ethanol 94.5% / ethyl acetate 4%
FL
ethyl 2-hydroxyethyl sulfide
FL
furfuryl 2-methyl-3-furyl disulfide
FL
4-
furfuryl thio-2-pentanone
FL
ham enhancers
FL
ham flavor
FL
hot dog flavor
FL
lamb flavor
FL
liver flavor
FL
meat broth concentrates
FL
meat flavors
FL
meaty dithiane
FL/FR
meaty enhancers
FL
3-
mercapto-2-butanone
FL
(R,S)-2-
mercapto-3-butanol
FL
3-
mercapto-3-methyl butanol
FL
2-
mercaptomethyl pyrazine
FL
2-
mercaptopropionic acid
FL/FR
2-
methyl 3-(methyl thio) furan
FL
2-(
methyl thio) phenol
FL/FR
methyl thiofuryl butanal
FL
12-
methyl tridecanal
FL
bis(2-
methyl-3-furyl) disulfide
FL
S-(2-
methyl-3-furyl) ethane thioate
FL
2-
methyl-3-tetrahydrofuran thiol
FL
2-
methyl-3-thioacetoxytetrahydrofuran
FL
phenyl mercaptan
FL
pork flavor
FL
grilled
pork flavor
FL
roasted
pork flavor
FL
propyl 2-mercaptopropionate
FL
pyrazinyl ethane thiol
FL
2-
pyridinyl methane thiol
FL
rabbit flavor
FL
grilled
steak flavor
FL
sulfurol
FL/FR
sulfuryl acetate
FL/FR
thialdine
FL
ortho-
thiocresol
FL
ortho-
thioguaiacol
FL
roast
turkey flavor
FL
smoked
turkey flavor
FL
turkey flavor
FL
veal flavor
FL
venison flavor
FL
medicinal
2,6-
dimethoxyphenol
FL/FR
metallic
2,5-
dihydroxy-1,4-dithiane
FL
moldy
strawberry furanone methyl ether
FL/FR
musty
2-
ethoxythiazole
FL
hazelnut pyrazine
FL/FR
nutty
3-
acetyl-2,5-dimethyl thiophene
FL
3,5-
diethyl-2-methyl pyrazine
FL
2,5-
diethyl-3-methyl pyrazine
FL
2,6-
dimethyl pyrazine
FL/FR
4,5-
dimethyl-2-ethyl-3-thiazoline
FL/FR
filbert heptenone
FL/FR
2,6-
lutidine
FL/FR
methyl benzoxole
FL/FR
2-
methyl pyrazine
FL/FR
nutty thiazole
FL
prunus amygdalus amara seed extract
FL/FR
onion
furfuryl isopropyl sulfide
FL
methionol
FL
phenolic
2-
ethyl benzene thiol
FL
popcorn
2-
propionyl-2-thiazoline
FL
roasted
3,5-
diisobutyl-1,2,4-trithiolane
FL
furfuryl thioacetate
FL/FR
hexyl mercaptan
FL
trigonella foenum-graecum seed oil CO2 extract
FL/FR
savory
N-(2,4-
dimethoxybenzyl)-N2-(2-(pyridin-2-yl)ethyl) oxalamide
FL
N-(
heptan-4-yl)benzo(D)(1,3)dioxole-5-carboxamide
FL
N1-(2-
methoxy-4-methyl benzyl)-N2-(2-(pyridin-2-yl)ethyl) oxalamide
FL
N1-(2-
methoxy-4-methyl benzyl)-N2-2(2-(5-methyl pyridin-2-yl)ethyl) oxalamide
FL
2,4,6-
triethyl tetrahydro-1,3,5-dithiazine
FL
smoky
pyroligneous acids
FL/FR
spicy
hot spicy
beef flavor
FL
sulfurous
2,3-
butane dithiol
FL
butyl mercaptan
FL
S-
ethyl thioacetate
FL
fish thiol
FL/FR
furfuryl thiopropionate
FL
methyl 2-methyl-3-furyl disulfide
FL
methyl mercaptan
FL/FR
3-
methyl-2-butane thiol
FL
2-
naphthyl mercaptan
FL
3-
pentane thiol
FL
roasted butanol
FL
2,4,6-
trithiaheptane 10% in triacetin
FL
tropical
3-
mercaptohexyl acetate
FL/FR
vegetable
tyramine
FL
waxy
(E)-2-
undecenal
FL/FR
yeasty
faex extracts
FL
 
Potential Uses:
FLcoffee
FLmeat
 
Occurrence (nature, food, other):note
 coffee
Search PMC Picture
 kohlrabi - 0.02 mg/kg
Search Trop Picture
 
Synonyms:
2-acetyl-4-methylthiazole
 ethanone, 1-(4-methyl-2-thiazolyl)-
1-(4-methyl thiazol-2-yl) ethanone
1-(4-methyl thiazol-2-yl)-ethanone
1-(4-methyl thiazol-2-yl)ethanone
1-(4-methyl-1,3-thiazol-2-yl)ethanone
4-methyl-2-acetyl thiazole
4-methyl-2-acetyl-thiazole
4-methyl-2-acetylthiazole
1-(4-methylthiazol-2-yl)ethanone
 thiazole, 2-acetyl-4-methyl-
 
 
Notes:
None found
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