2-Acetyl-3-methylpyrazine

CAS NO.：23787-80-6
Empirical Formula: C7H8N2O
Molecular Weight: 136.15
MDL number: MFCD00014612
EINECS: 245-889-8
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 05:39:10

What is 2-Acetyl-3-methylpyrazine?

Chemical properties

CLEAR SLIGHTLY YELLOW LIQUID

Chemical properties

2-Acetyl-3-methylpyrazine has a roasted, nutty, grain-roasted potato odor. It is one of the most important pyrazines for hazelnut or filbert nut flavors. The flavor is less burnt than most of the pyrazines

Occurrence

Reported present in cocoa, coffee, meat, clams, scallops, pork (cured, fried) and French fries.

Definition

ChEBI: 2-Acetyl-3-methylpyrazine is an aromatic ketone.

Aroma threshold values

Detection 0.02 (water)

Properties of 2-Acetyl-3-methylpyrazine

Boiling point:	90 °C20 mm Hg(lit.)
Density	1.114 g/mL at 25 °C(lit.)
FEMA	3964 \| 2-ACETYL-3-METHYLPYRAZINE
refractive index	n20/D 1.521(lit.)
Flash point:	176 °F
storage temp.	Keep in dark place,Inert atmosphere,2-8°C
form	clear liquid
pka	0.56±0.10(Predicted)
color	Light yellow to Yellow to Orange
Specific Gravity	1.1100
Odor	at 0.10 % in dipropylene glycol. nutty nut flesh roasted hazelnut toasted grain corn chip vegetable nut skin caramellic
Sensitive	Light Sensitive
JECFA Number	950
BRN	742438
CAS DataBase Reference	23787-80-6(CAS DataBase Reference)
NIST Chemistry Reference	2-Acetyl-3-methylpyrazine(23787-80-6)
EPA Substance Registry System	Ethanone, 1-(3-methylpyrazinyl)- (23787-80-6)

Safety information for 2-Acetyl-3-methylpyrazine

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.