thiazole, 2,5-dihydro-4-methyl-2-(1-methylethyl)-
None found
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4-methyl-2-propan-2-yl-2,5-dihydro-1,3-thiazole (Click)
CAS Number: 67936-13-4Picture of molecule
ECHA EINECS - REACH Pre-Reg: 267-816-9
Nikkaji Web: J317.237F
XlogP3-AA: 1.90 (est)
Molecular Weight: 143.25261000
Formula: C7 H13 N S
NMR Predictor: Predict (works with chrome or firefox)
Category: flavor enhancers
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
Google Patents: Search
US Patents: Search
EU Patents: Search
IBM Patents: Obtain
Pubchem Patents: Search
JECFA Food Flavoring: 2206  2-isopropyl-4-methyl-3-thiazoline
FEMA Number: 4767  2-isopropyl-4-methyl-3-thiazoline
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Physical Properties:
Appearance: colorless to pale yellow clear liquid (est)
Assay: 95.00 to 100.00 % 
Food Chemicals Codex Listed: No
Specific Gravity: 0.99360 to 1.07400 @  20.00 °C.
Pounds per Gallon - (est).: 8.277 to  8.947
Refractive Index: 1.49710 to 1.54700 @  20.00 °C.
Boiling Point: 201.34 °C. @ 760.00 mm Hg (est)
Boiling Point: 45.00 to  46.00 °C. @ 0.75 mm Hg
Acid Value: 2.00 max. KOH/g
Vapor Pressure: 0.439000 mm/Hg @ 25.00 °C. (est)
Flash Point: 168.00 °F. TCC ( 75.60 °C. ) (est)
logP (o/w): 3.381 (est)
Soluble in:
 water, 61.77 mg/L @ 25 °C (est)
Insoluble in:
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Organoleptic Properties:
Odor Type: toasted
Odor Strength: high ,
recommend smelling in a 0.10 % solution or less
 toasted  sulfurous  sweet  cocoa  chocolate  
Odor Description:
at 0.10 % in propylene glycol. 
toasted sulfury sweet cocoa chocolate
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Cosmetic Information:
None found
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Chemical Sources Association
Need This Item for Flavor/Food?: You can contact the Chemical Sources Association
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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
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: flavor enhancers
Recommendation for 2-isopropyl-4-methyl-3-thiazoline usage levels up to:
 not for fragrance use.
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: 26
Click here to view publication 26
 average usual ppmaverage maximum ppm
baked goods: 0.250000.50000
beverages(nonalcoholic): 0.250000.50000
beverages(alcoholic): 0.250000.50000
breakfast cereal: 0.250000.50000
cheese: --
chewing gum: 0.500001.00000
condiments / relishes: 0.250000.50000
confectionery froastings: 0.250000.50000
egg products: --
fats / oils: --
fish products: --
frozen dairy: 0.250000.50000
fruit ices: 0.250000.50000
gelatins / puddings: --
granulated sugar: --
gravies: --
hard candy: 0.250000.50000
imitation dairy: --
instant coffee / tea: --
jams / jellies: 0.250000.50000
meat products: --
milk products: 0.250000.50000
nut products: --
other grains: --
poultry: --
processed fruits: 0.250000.50000
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: 0.250000.50000
snack foods: --
soft candy: 0.250000.50000
soups: --
sugar substitutes: --
sweet sauces: 0.250000.50000
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Safety References:
EPI System: View
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
Laboratory Chemical Safety Summary : 3017811
National Institute of Allergy and Infectious Diseases: Data
Chemidplus: 0067936134
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NIST Chemistry WebBook: Search Inchi
Pubchem (cid): 3017811
Pubchem (sid): 135247747
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Other Information:
(IUPAC): Atomic Weights of the Elements 2009
(IUPAC): Atomic Weights of the Elements 2009 (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
Read: Under the conditions of intended use - New developments in the FEMA GRAS program and the safety assessment of flavor ingredients
Read: A GRAS assessment program for flavor ingredients
Read: Sensory testing for flavorings with modifying properties. Food Technology
Read: Criteria for the safety evaluation of flavoring substances
Read: A procedure for the safety evaluation of natural flavor complexes used as ingredients in food: essential oils
Read: FEMA Expert Panel: 30 Years of safety evaluation for the flavor industry
Read: Consumption ratio and food predominance of flavoring materials
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Potential Blenders and core components note
None Found
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 found in nature
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2,5-dihydro-2-isopropyl-4-methyl thiazole
 thiazole, 2,5-dihydro-4-methyl-2-(1-methylethyl)-
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