2-Ethyl-4-methyl thiazole
- CAS NO.：15679-12-6
- Empirical Formula: C6H9NS
- Molecular Weight: 127.21
- MDL number: MFCD00036621
- EINECS: 239-757-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:26:43
What is 2-Ethyl-4-methyl thiazole?
Chemical properties
clear colorless or pale yellow to
Chemical properties
2-Ethyl-4-methylthiazole has a nutty, green odor
Occurrence
Reported found in roasted coffee, raspberry and roasted pork.
Preparation
By esterification of cis-3-hexenol with benzoic acid.
Definition
ChEBI: 2-Ethyl-4-methylthiazole is a member of thiazoles.
Aroma threshold values
Detection: 100 ppb. Aroma characteristics at 0.1%: musty, oily, nutty, cocoa powdery with a coffee top note, casky and whiskey-like, with a slight meaty savory nuance.
Taste threshold values
Taste characteristics at 0.10–0.50 ppm: oily, woody, musty cocoa powdery with a coffee bean nuance
Properties of 2-Ethyl-4-methyl thiazole
| Boiling point: | 161-162 °C(lit.) |
| Density | 1.026 g/mL at 25 °C(lit.) |
| refractive index | n |
| FEMA | 3680 | 2-ETHYL-4-METHYLTHIAZOLE |
| Flash point: | 130 °F |
| storage temp. | 2-8°C |
| form | clear liquid |
| pka | 3.67±0.10(Predicted) |
| Specific Gravity | 1.03 |
| color | Colorless to Light yellow to Light orange |
| Odor | at 0.10 % in dipropylene glycol. nutty green pistachio |
| JECFA Number | 1044 |
| CAS DataBase Reference | 15679-12-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Ethyl-4-methylthiazole(15679-12-6) |
| EPA Substance Registry System | Thiazole, 2-ethyl-4-methyl- (15679-12-6) |
Safety information for 2-Ethyl-4-methyl thiazole
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2-Ethyl-4-methyl thiazole
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