2-Acetyl-3-methylpyrazine Chemical Properties

Boiling point:

90 °C20 mm Hg(lit.)

Density 

1.114 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.521(lit.)

FEMA 

3964 | 2-ACETYL-3-METHYLPYRAZINE

Flash point:

176 °F

storage temp. 

Keep in dark place,Inert atmosphere,2-8°C

pka

0.56±0.10(Predicted)

form 

clear liquid

Specific Gravity

1.1100

color 

Light yellow to Yellow to Orange

Odor

at 0.10 % in dipropylene glycol. nutty nut flesh roasted hazelnut toasted grain corn chip vegetable nut skin caramellic

Odor Type

nutty

Sensitive 

Light Sensitive

JECFA Number

950

BRN 

742438

LogP

0.62

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

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36/37/39-24/25

WGK Germany 

3

TSCA 

Yes

HS Code 

29339900

MSDS

• Language:English Provider:1-(3-Methylpyrazin-2-yl)ethan-1-one
• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

2-Acetyl-3-methylpyrazine Usage And Synthesis

Identification

Description

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.

Regulatory Status

CoE: n/a
FDA: n/a
FDA (other): n/a
JECFA: ADI: Acceptable. No safety concern at current levels of intake when used as a flavoring agent (2001).

Usage

Reported uses (ppm): (FEMA, 2001)

Natural occurrence

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

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)

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