2-Methyl-5-vinylpyrazine, 99% Property

Melting point:

65-66 °C

Boiling point:

174.6±35.0 °C(Predicted)

Density 

1.017±0.06 g/cm3(Predicted)

FEMA 

3211 | 2-METHYL-5-VINYLPYRAZINE (RE-GRAS)

storage temp. 

2-8°C

pka

1.34±0.10(Predicted)

Odor

coffee

Odor Type

coffee

JECFA Number

2127

LogP

1.04

EPA Substance Registry System

Pyrazine, 2-ethenyl-5-methyl- (13925-08-1)

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

2-Methyl-5-vinylpyrazine, 99% Chemical Properties,Usage,Production

Description

May be prepared by methylation of the Mannich base obtained by reacting formaldehyde and dimethylamine with dimethyl- 2, 5-pyrazine, followed by the Hoffman degradation.

Occurrence

Reported to be present in coffee, dairy products, peanuts, filberts, potato products, asparagus, fried chicken, cocoa, toasted oats, corn tortillas and mal

Definition

ChEBI: 2-Methyl-5-vinylpyrazine is a member of pyrazines.

Preparation

By methylation of the Mannich base obtained by reacting formaldehyde and dimethylamine with dimethyl-2,5-pyrazine, followed by the Hoffman degradation