2-Isobutylthiazole
- CAS NO.：18640-74-9
- Empirical Formula: C7H11NS
- Molecular Weight: 141.23
- MDL number: MFCD00005334
- EINECS: 242-470-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-12-18 14:08:57
What is 2-Isobutylthiazole?
Description
2-Isobutylthiazole has an odor of tomato leaves. Synthesized via cyclization of aliphatic amides with a,p-dibromo ether.
Chemical properties
Colorless to light yellow liqui
Chemical properties
2-Isobutylthiazole has a tomato leaf odor.
Occurrence
Reportedly identified as the odorous component of tomatoes and in processed tomatoes.
Preparation
By cyclization of aliphatic amides with α,β-dibromo ether.
Definition
ChEBI: A 1,3-thiazole in which the hydrogen at position 2 has been replaced by an isobutyl group. A food flavour component with a green note that adds the characteristics of ripe tomatoes. Used in blackcurrent, papaya, melon, raspberry, and roast beef flavours, i also enhances the flavour of fresh lime.
Aroma threshold values
Detection: 3.5 ppb
Properties of 2-Isobutylthiazole
| Boiling point: | 180 °C (lit.) |
| Density | 0.995 g/mL at 25 °C (lit.) |
| refractive index | n |
| FEMA | 3134 | 2-ISOBUTYLTHIAZOLE |
| Flash point: | 136 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Sparingly), Methanol (Slightly) |
| form | clear liquid |
| pka | 3.24±0.10(Predicted) |
| Specific Gravity | 0.995 |
| color | Light orange to Yellow to Green |
| Odor | tomato (leaf) odor |
| JECFA Number | 1034 |
| BRN | 507823 |
| CAS DataBase Reference | 18640-74-9(CAS DataBase Reference) |
| NIST Chemistry Reference | 2-Isobutylthiazole(18640-74-9) |
| EPA Substance Registry System | Thiazole, 2-(2-methylpropyl)- (18640-74-9) |
Safety information for 2-Isobutylthiazole
| 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-Isobutylthiazole
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