2-sec-butyl thiazole

2-sec-butylthiazole

C7 H11 N S MW: 141.23667000 green

Identification

Name2-sec-butyl thiazole
IUPAC2-[(2S)-butan-2-yl]-1,3-thiazole
EINECS242-154-3
FDA UNIISearch
Molecular FormulaC7 H11 N S
Molecular Weight141.23667000
MDL NumberMFCD00051951
Nikkaji NumberJ1.207.815C
CoE Number11598

Regulatory

JECFA Food Flavoring1033 2-(1-methylpropyl)thiazole
DG SANTE Food Flavourings15.022 2-(sec-butyl)thiazole
FEMA Number3372
FDANo longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm (SATF)18277-27-5 ; 2-(1-METHYLPROPYL)THIAZOLE

Physical Properties

Appearance colorless clear liquid (est)
Assay 98.00 to 100.00
Food Chemicals Codex Listed No
Specific Gravity 0.99800 to 1.00300 @ 25.00 °C.
Pounds per Gallon - (est). 8.304 to 8.346
Refractive Index 1.49600 to 1.50200 @ 20.00 °C.
Boiling Point 174.00 to 175.00 °C. @ 760.00 mm Hg
Vapor Pressure 1.473000 mmHg @ 25.00 °C. (est)
Flash Point 139.00 °F. TCC ( 59.44 °C. )
logP (o/w) 1.715 (est)
Soluble in alcohol
Insoluble in water

Organoleptic Properties

Odor Description
at 0.10 % in dipropylene glycol.
Green, herbaceous, spicy, tomato leaf-like
Taste Description green

Safety Information

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-sec-butyl thiazole usage levels up to0.0500 % in the fragrance concentrate.
Maximised Survey-derived Daily Intakes (MSDI-EU)0.024 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA)0.01 (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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Synerzine, Inc.

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R C Treatt and Co Ltd

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Potential Uses

FR green FR herbal FL tomato

Natural Occurrence

tomato

Synonyms

2- butan-2-yl-1,3-thiazole 2-( butan-2-yl)-1,3-thiazole 2-sec- butyl-1,3-thiazole 2-(sec- butyl)thiazole 2-sec- butylthiazole 2-(1- methyl propyl) thiazole 2-(1- methylpropyl)-thiazole 2-(1- methylpropyl)thiazole thiazole, 2-(1-methylpropyl)- thiazole, 2-sec-butyl- PubMed: Comparison of urinary scents of two related mouse species, Mus spicilegus and Mus domesticus. PubMed: Mice recognize recent urine scent marks by the molecular composition. PubMed: Backbone motions of free and pheromone-bound major urinary protein I studied by molecular dynamics simulation. PubMed: Thermodynamic consequences of disrupting a water-mediated hydrogen bond network in a protein:pheromone complex. PubMed: Temperature-dependent spectral density analysis applied to monitoring backbone dynamics of major urinary protein-I complexed with the pheromone 2- sec-butyl-4,5-dihydrothiazole. PubMed: Absolute configuration of 2-sec-butyl-4,5-dihydrothiazole in male mouse urine. PubMed: Thermodynamic analysis of binding between mouse major urinary protein-I and the pheromone 2-sec-butyl-4,5-dihydrothiazole. PubMed: Characterization of urinary volatiles in Swiss male mice (Mus musculus): bioassay of identified compounds. PubMed: Unravelling the chemical basis of competitive scent marking in house mice. PubMed: Positive identification of the puberty-accelerating pheromone of the house mouse: the volatile ligands associating with the major urinary protein. PubMed: Increased protein backbone conformational entropy upon hydrophobic ligand binding. PubMed: NMR mapping of the recombinant mouse major urinary protein I binding site occupied by the pheromone 2-sec-butyl-4,5-dihydrothiazole. PubMed: Patterns of expression of the immediate-early gene egr-1 in the accessory olfactory bulb of female mice exposed to pheromonal constituents of male urine. PubMed: Proteins in urine scent marks of male house mice extend the longevity of olfactory signals. PubMed: Electrophysiological and biochemical responses of mouse vomeronasal receptor cells to urine-derived compounds: possible mechanism of action. PubMed: 2-sec-butyl-4,5-dihydrothiazole is a ligand for mouse urinary protein and rat alpha 2u-globulin: physiological and toxicological relevance. PubMed: Effect of urine-derived compounds on cAMP accumulation in mouse vomeronasal cells. PubMed: Stereoselectivity in mammalian chemical communication: male mouse pheromones. PubMed: Pheromone binding proteins of the mouse, Mus musculus. PubMed: Promotion of the Whitten effect in female mice by synthetic analogs of male urinary constituents. PubMed: An in vivo/in vitro evaluation of teratogenic action. PubMed: Identification of dihydrothiazoles in urine of male mice.