4-Methylthiazole
- CAS NO.：693-95-8
- Empirical Formula: C4H5NS
- Molecular Weight: 99.15
- MDL number: MFCD00005340
- EINECS: 211-764-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-09-25 17:15:13
What is 4-Methylthiazole?
Description
4-Methylthiazole has a nutty, green odor.
Chemical properties
CLEAR COLOURLESS TO SLIGHTLY YELLOW LIQUID
Chemical properties
4-Methylthiazole has a nutty, green odo
Occurrence
Reported found in cooked asparagus, roasted barley, cooked beef, cocoa, cooked pork, roasted coffee, roasted peanuts, boiled egg, malt, wort and cooked shrimp.
The Uses of 4-Methylthiazole
4-Methylthiazole was used in the synthesis of catalytic dendrophanes, as functional mimics of the thiamine-diphosphate-dependent enzyme pyruvate oxidase. It was used in small scale preparation of 3-butyl-4-methylthiazolium bromide.
Definition
ChEBI: A 1,3-thiazole substituted by a methyl group at position 4.
Taste threshold values
Taste characteristics at 10 ppm: green, vegetative and meaty with an alliaceous nuance
General Description
4-Methylthiazole forms complexes with cobalt(II), zinc(II), nickel(II) and copper(II) halides.
Properties of 4-Methylthiazole
| Melting point: | 134 °C |
| Boiling point: | 133-134 °C (lit.) |
| Density | 1.09 g/mL at 25 °C (lit.) |
| FEMA | 3716 | 4-METHYLTHIAZOLE |
| refractive index | n |
| Flash point: | 90 °F |
| storage temp. | Inert atmosphere,2-8°C |
| pka | pK1:3.16(+1) (25°C,μ=0.1) |
| form | Liquid |
| Specific Gravity | 1.090 |
| color | Clear colorless to slightly yellow |
| Odor | at 0.10 % in dipropylene glycol. nutty green vegetable tomato |
| JECFA Number | 1043 |
| BRN | 105228 |
| CAS DataBase Reference | 693-95-8(CAS DataBase Reference) |
| NIST Chemistry Reference | 4-Methylthiazole(693-95-8) |
| EPA Substance Registry System | Thiazole, 4-methyl- (693-95-8) |
Safety information for 4-Methylthiazole
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids H302:Acute toxicity,oral H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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 4-Methylthiazole
| InChIKey | QMHIMXFNBOYPND-UHFFFAOYSA-N |
4-Methylthiazole manufacturer
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