2,3-Diethylpyrazine
Synonym(s):Shoyu pyrazine
- CAS NO.：15707-24-1
- Empirical Formula: C8H12N2
- Molecular Weight: 136.19
- MDL number: MFCD00006151
- EINECS: 239-800-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 06:06:52
What is 2,3-Diethylpyrazine?
Chemical properties
CLEAR COLORLESS TO LIGHT YELLOW LIQUID
Chemical properties
2,3-Diethylpyrazine has a nutty, hazelnut aroma
Occurrence
Reported found in baked potato, mushrooms, cocoa, roasted filberts, malt and shoyu (fermented soya hydrolysate).
The Uses of 2,3-Diethylpyrazine
2,3-Diethylpyrazine is used in method for preparing coffee extracts for cigarette using aroma backfilling agents.
Preparation
By condensation of 3,4-hexanedione with ethylenediamine
Definition
ChEBI: 2,3-Diethylpyrazine is a member of pyrazines.
Taste threshold values
Taste characteristics at 10 ppm: musty, raw, slight nutty, slight radishEMA PADI: 0.681 m
General Description
2,3-Diethylpyrazine is naturally present in tobacco and has been added to tobacco as flavor ingredients. Interaction of 2,3-diethylpyrazine (a volatile flavor compound) with propyl gallate has been investigated.
Properties of 2,3-Diethylpyrazine
| Boiling point: | 180-182 °C (lit.) |
| Density | 0.963 g/mL at 25 °C (lit.) |
| refractive index | n |
| FEMA | 3136 | 2,3-DIETHYLPYRAZINE |
| Flash point: | 159 °F |
| storage temp. | Inert atmosphere,Room Temperature |
| form | neat |
| pka | 2.16±0.10(Predicted) |
| Specific Gravity | 0.963 |
| color | Colorless to Light yellow |
| Odor | at 0.10 % in dipropylene glycol. raw nutty green pepper |
| JECFA Number | 771 |
| CAS DataBase Reference | 15707-24-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,3-Diethylpyrazine(15707-24-1) |
| EPA Substance Registry System | Pyrazine, 2,3-diethyl- (15707-24-1) |
Safety information for 2,3-Diethylpyrazine
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
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 2,3-Diethylpyrazine
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