2-Acetyl Pyrazine

Product Name:

2-Acetyl pyrazine

Synonyms:

1-pyrazinylethanone;1-pyrazinyl-Ethanone;Ethanone, 1-pyrazinyl-;Ethanone,1-pyrazinyl-;Ketone, methyl pyrazinyl;Ketone,methylpyrazinyl;Acetylpyrazine In stock Factory;ACETYLPYRAZINE

CAS:

22047-25-2

MF:

C6H6N2O

MW:

122.12

EINECS:

244-753-5

Product Categories:

Pharmaceutical Intermediates;ACETYLGROUP;Pyrazines;Pyrazine;Heterocyclic Compounds;Miscellaneous;Chloropyrazines, etc.;pyrazine Flavor;Building Blocks;Heterocyclic Building Blocks;Sulfides flavors;Building Blocks;Chemical Synthesis;Heterocyclic Building Blocks

Mol File:

22047-25-2.mol

Melting point 

75-78 °C

Boiling point 

78-79°C 8mm

density 

1.1075

FEMA 

3126 | ACETYLPYRAZINE

refractive index 

1.5350 (estimate)

Fp 

78-79°C/8mm

pka

0.30±0.10(Predicted)

Odor

popcorn-like odor

JECFA Number

784

BRN 

109630

InChIKey

DBZAKQWXICEWNW-UHFFFAOYSA-N

CAS DataBase Reference

22047-25-2(CAS DataBase Reference)

NIST Chemistry Reference

Acetylpyrazine(22047-25-2)

EPA Substance Registry System

Ethanone, 1-pyrazinyl- (22047-25-2)

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

26-36-24/25

WGK Germany 

2

Hazard Note 

Irritant

TSCA 

T

HazardClass 

IRRITANT

HS Code 

29339900

Chemical Properties

LIGHT YELLOW TO YELLOW-BROWNISH POWDER

Chemical Properties

Acetylpyrazine has a nutty, popcorn, bread crust odor.

Preparation

By the ester condensation of EtO2 C-pyrazine; by dehydrating pyrazynamide with POCI3 and then reacting the resulting 2-cyano-pyrazine with methyl magnesium bromide

Aroma threshold values

Detection at 62 ppb

Taste threshold values

Taste characteristics at 10 ppm: roasted, nutty, bready, yeasty with popcorn, corn chip nuance

Raw materials

Ethyl acetate-->Diethyl ether-->Dichloromethane-->PETROLEUM ETHER-->Magnesium-->Trifluoroacetic acid-->Ammonium persulfate-->Pyruvic acid-->Silver nitrate-->Pyrazine