2-isobutyl thiazole

2-isobutylthiazole

CAS: 18640-74-9 C7 H11 N S MW: 141.23667000 green green

Identification

Name2-isobutyl thiazole
IUPAC2-(2-methylpropyl)-1,3-thiazole
CAS Number18640-74-9
EINECS242-470-1
FDA UNII7N03TDY75D
Molecular FormulaC7 H11 N S
Molecular Weight141.23667000
MDL NumberMFCD00005334
Nikkaji NumberJ45.613F
CoE Number11618

Regulatory

JECFA Food Flavoring1034 2-isobutylthiazole
DG SANTE Food Flavourings15.013 2-isobutylthiazole
FEMA Number3134
FDANo longer provide for the use of these seven synthetic flavoring substances
FDA RegulationFDA PART 172 -- FOOD ADDITIVES PERMITTED FOR DIRECT ADDITION TO FOOD FOR HUMAN CONSUMPTION

Physical Properties

Appearance colorless to pale yellow clear liquid (est)
Assay 96.00 to 100.00
Food Chemicals Codex Listed No
Specific Gravity 0.99500 to 0.99530 @ 25.00 °C., 1.00000 to 1.00400 @ 20.00 °C.
Pounds per Gallon - (est). 8.279 to 8.282
Pounds per Gallon - est. 8.331 to 8.364
Refractive Index 1.49400 to 1.49800 @ 20.00 °C., 1.49000 to 1.49900 @ 20.00 °C.
Boiling Point 174.00 to 180.00 °C. @ 760.00 mm Hg
Vapor Pressure 1.091000 mmHg @ 25.00 °C. (est)
Vapor Density 4.8 ( Air = 1 )
Flash Point 135.00 °F. TCC ( 57.22 °C. )
logP (o/w) 1.715 (est)
Soluble in alcohol
Insoluble in water
Stability stable in most media

Cosmetic Information

CosIngcosmetic data
Cosmetic Usesperfuming agents

Organoleptic Properties

Odor Strength high ,
Substantivity > 1 hour(s) at 100.00 %
Odor Description
at 1.00 % in dipropylene glycol.
Green, vegetable, musty with a waxy nuance
Green tomato leaf
Green, tomato, earthy, vegetable, metallic. Extremely powerful
Powerful, fresh, natural, tomato, earthy
Odor sample from R C Treatt and Co Ltd
Taste Description
at 2.00 ppm.
Green tomato

Safety Information

Preferred SDSView
European informationMost important hazard(s):
Oral/Parenteral ToxicityNot determined
Dermal ToxicityNot determined
Inhalation ToxicityNot determined

GHS Classification

['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']

Safety in Use

Categoryflavor and fragrance agents
RIFM Fragrance Material Safety AssessmentSearch
Recommendation for 2-isobutyl thiazole usage levels up to0.0800 % in the fragrance concentrate.
Maximised Survey-derived Daily Intakes (MSDI-EU)3.00 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA)0.40 (μg/capita/day)
Structure ClassII
baked goods-
beverages(nonalcoholic)-
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-
milk products-
nut products-
other grains-
poultry-
processed fruits-
processed vegetables-
reconstituted vegetables-
seasonings / flavors-
snack foods-
soft candy-
soups-
sugar substitutes-
sweet sauces-

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Robinson Brothers Limited

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Potential Uses

FR apricot FR earth FR floral FR fungus FR green leaf FR musk FR peach FL tomato FR tomato leaf FL vegetable vine

Natural Occurrence

cantaloupe fruit tomato

Synonyms

2-iso butyl-1,3-thiazole iso butyl-2 thiazole 2-iso butylthiazole iso butylthiazole 2-(2- methyl propyl) thiazole 2-(2- methylpropyl)-1,3-thiazole 2-(2- methylpropyl)thiazole thiazole, 2-(2-methylpropyl)- thiazole, 2-isobutyl- thiazyl (PFW) thiazyl 1% DPG (PFW) thiazyl 1% in DPG (PFW) tomato leaf thiazole PubMed: Impact of different distribution scenarios and recommended storage conditions on flavor related quality attributes in ripening fresh tomatoes. PubMed: Dynamics of odorant binding to thin aqueous films of rat-OBP3. PubMed: Flavor release of the tomato flavor enhancer, 2-isobutylthiazole, from whey protein stabilized model dressings. PubMed: Population pharmacokinetic model for a novel oral hypoglycemic formed in vivo: comparing the use of active metabolite data alone versus using data of upstream and downstream metabolites. PubMed: Discovery of a series of phosphonic acid-containing thiazoles and orally bioavailable diamide prodrugs that lower glucose in diabetic animals through inhibition of fructose-1,6-bisphosphatase. PubMed: Fructose-1,6-bisphosphatase regulates glucose-stimulated insulin secretion of mouse pancreatic beta-cells. PubMed: P2Y2 receptor-Gq/11 signaling at lipid rafts is required for UTP-induced cell migration in NG 108-15 cells. PubMed: Comparison of tomatillo and tomato volatile compounds in the headspace by selected ion flow tube mass spectrometry (SIFT-MS). PubMed: The peripheral benzodiazepine receptor ligand 1-(2-chlorophenyl-methylpropyl)-3-isoquinoline-carboxamide is a novel antagonist of human constitutive androstane receptor. PubMed: Studies on the aroma of five fresh tomato cultivars and the precursors of cis- and trans-4,5-epoxy-(E)-2-decenals and methional. PubMed: A potential endogenous ligand for the aryl hydrocarbon receptor has potent agonist activity in vitro and in vivo. PubMed: MB06322 (CS-917): A potent and selective inhibitor of fructose 1,6-bisphosphatase for controlling gluconeogenesis in type 2 diabetes. PubMed: Nitric oxide donating nonsteroidal anti-inflammatory drugs induce apoptosis in human prostate cancer cell systems and human prostatic stroma via caspase-3. PubMed: First synthesis of an amythiamicin pyridine cluster. PubMed: Absolute configuration of 2-sec-butyl-4,5-dihydrothiazole in male mouse urine. PubMed: CYP3A induction by N-hydroxyformamide tumor necrosis factor-alpha converting enzyme/matrix metalloproteinase inhibitors use of a pregname X receptor activation assay and primary hepatocyte culture for assessing induction potential in humans. PubMed: Differential effects of tomato (Lycopersicon esculentum mill) matrix on the volatility of important aroma compounds. PubMed: Addition of heteroaromatics to alkylidenecyclopropanes catalyzed by palladium. PubMed: Odorants of different chemical classes interact with distinct odorant binding protein subtypes. PubMed: Synthesis and dopamine receptor modulating activity of substituted bicyclic thiazolidine lactam peptidomimetics of L-prolyl-L-leucyl-glycinamide. PubMed: Mammalian pheromones VIII Chemical characterization of preorbital gland secretion of grey duiker,Sylvicapra grimmia (Artiodactyla: Bovidae). PubMed: Mammalian pheromone studies, VII. Identification of thiazole derivatives in the preorbital gland secretions of the grey duiker, Sylvicapra grimmia, and the red duiker, Cephalophus natalensis. PubMed: The odorant-sensitive adenylate cyclase of olfactory receptor cells. Differential stimulation by distinct classes of odorants.