2-Acetyl-3,5-dimethylpyrazine
- CAS NO.:54300-08-2
- Empirical Formula: C8H10N2O
- Molecular Weight: 150.18
- MDL number: MFCD00055023
- EINECS: 259-076-0
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-08-24 19:19:26
What is 2-Acetyl-3,5-dimethylpyrazine?
Chemical properties
It has an odor of roasted hazelnut with caramel popcorn nuances.
Occurrence
Reported found in coffee
Preparation
From the corresponding dimethyl-ethylpyrazine by bromination, followed by oxidation to the ketone
Definition
ChEBI: 2-Acetyl-3,5-dimethylpyrazine is an aromatic ketone.
Aroma threshold values
Detection at 1%: musty roasted cocoa, nutty peanut with caramel-like nuance.
Taste threshold values
Taste characteristics at 5 ppm: almond, caramel, cocoa, hazelnut, peanut, pistachio, toffee and coffeelike.
Properties of 2-Acetyl-3,5-dimethylpyrazine
Boiling point: | 70 °C7 mm Hg(lit.) |
Density | 1.073 g/mL at 25 °C(lit.) |
vapor pressure | 3 mm Hg ( 20 °C) |
refractive index | n |
FEMA | 3327 | 2-ACETYL-3,5(AND 6)-DIMETHYLPYRAZINE |
Flash point: | 195 °F |
storage temp. | Sealed in dry,Room Temperature |
form | clear liquid |
pka | 1.25±0.10(Predicted) |
color | Colorless to Light orange to Yellow |
Odor | at 0.10 % in propylene glycol. nutty roasted hazelnut |
JECFA Number | 786 |
CAS DataBase Reference | 54300-08-2(CAS DataBase Reference) |
NIST Chemistry Reference | Ethanone, 1-(3,5-dimethylpyrazinyl)-(54300-08-2) |
EPA Substance Registry System | Ethanone, 1-(3,5-dimethylpyrazinyl)- (54300-08-2) |
Safety information for 2-Acetyl-3,5-dimethylpyrazine
Signal word | Warning |
Pictogram(s) |
Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H315:Skin corrosion/irritation H319: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. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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-Acetyl-3,5-dimethylpyrazine
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