2-Propylpyrazine
- CAS NO.：18138-03-9
- Empirical Formula: C7H10N2
- Molecular Weight: 122.17
- MDL number: MFCD00049214
- EINECS: 242-023-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:34:38
What is 2-Propylpyrazine?
Chemical properties
clear very slightly yellow liquid
Chemical properties
2-Propylpyrazine has a green, vegetable odor.
Occurrence
Reported found in roasted coffee beans.
Definition
ChEBI: Propylpyrazine is a member of pyrazines.
Aroma threshold values
Detection: 300 ppb
Properties of 2-Propylpyrazine
| Boiling point: | 65 °C (12 mmHg) |
| Density | 0.975 |
| refractive index | 1.492-1.494 |
| FEMA | 3961 | PROPYLPYRAZINE |
| Flash point: | 56 °C |
| storage temp. | Sealed in dry,Room Temperature |
| form | clear liquid |
| pka | 1.70±0.10(Predicted) |
| Specific Gravity | 0.9700 |
| color | Colorless to Light yellow |
| Odor | at 0.10 % in dipropylene glycol. green vegetable nutty |
| JECFA Number | 763 |
| CAS DataBase Reference | 18138-03-9(CAS DataBase Reference) |
| NIST Chemistry Reference | Pyrazine, 2-(n-propyl)-(18138-03-9) |
| EPA Substance Registry System | Pyrazine, propyl- (18138-03-9) |
Safety information for 2-Propylpyrazine
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H226:Flammable liquids 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-Propylpyrazine
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