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| | 5-(2-Hydroxyethyl)-4-methylthiazole Chemical Properties |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 24/25 | | WGK Germany | 3 | | F | 13 | | Hazard Note | Irritant/Stench | | TSCA | Yes | | HS Code | 29341000 |
| | 5-(2-Hydroxyethyl)-4-methylthiazole Usage And Synthesis |
| Content analysis | It was determined by gas chromatography (GT-10-4) using a nonpolar column method. | | Toxicity | GRAS (FEMA) | | Usage limit FEMA | soft drinks, cold drinks, candy, baked goods, jelly, pudding, jelly sugar, seasonings, meat products, meat soup, milk and dairy products as well as cereal product: 55.0mg/kg. | | Chemical properties | It appears as colorless to pale yellow viscous oily liquid. The color will turn dark after being subject to long-term storage. It emit unpleasant thiophene compound odor with high dilution generating nut aroma. The boiling point is 103 ° C (133 Pa), or 135 ° C (933 Pa). It is easily soluble in water, soluble in ethanol, ether, benzene and chloroform. | | Application |
- Used as temporarily allowable food spices;
- For nuts, dairy products, meat products, etc., as pharmaceutical intermediates;
- Used for the deployment of chocolate, milk and nuts
| | Preparation | It is obtained from the reduction of 4-methyl thiazole 5-ethyl acetate reduction with lithium aluminum hydride. | | Description | 4-Methy 1-5-thiazoleethanol has the characteristic disagreeable
odor of thiazole compounds. It is somewhat pleasant and nut-like
on extreme dilution. It may be prepared by reduction of ethyl-
4-methylthiazole-5-acetate using LiAlH4; by condensation of thioformamide
with bromoacetopropanol or with y,y-dichloro-y,ydiacetodipropyl
ether. | | Chemical Properties | 4-Methyl-5-thiazoleethanol has a disagreeable odor typical of thiazole compounds; somewhat pleasant, reminiscent of
beef and nut-like, on extreme dilution | | Chemical Properties | Colorless to light yellow liqui | | Occurrence | Reported found in grilled and roasted beef, cognac, brandy, Finnish whiskey, cocoa, peanuts, beans and malt.
| | Uses | 4-Methyl-5-thiazoleethanol has been used in the synthesis of novel thiazolium halogenide ionic liquids. | | Preparation | By reduction of ethyl-4-methylthiazole-5-acetate using LiAlH4; by condensation of thioformamide with bromoacetopropanol or with γ, y-dichloro-γ,γ-diacetodipropyl ether | | Definition | ChEBI: A 1,3-thiazole that is thiazole substituted by a methyl group at position 4 and a 2-hydroxyethyl group at position 5. | | Taste threshold values | Taste characteristics at 20 ppm: meaty, brothy, roasted, metallic and nutty. | | General Description | 4-Methyl-5-thiazoleethanol is a sulfur-containing heterocyclic flavor compound that is reported to occur in Comté cheese and Panax ginseng. |
| | 5-(2-Hydroxyethyl)-4-methylthiazole Preparation Products And Raw materials |
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