2-Pyrazinylethanethiol Chemical Properties

Boiling point:

105-110 °C20 mm Hg(lit.)

Density 

1.142 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.567(lit.)

FEMA 

3230 | PYRAZINE ETHANETHIOL

Flash point:

>230 °F

storage temp. 

Inert atmosphere,2-8°C

pka

9.82±0.10(Predicted)

form 

clear liquid

color 

White to Yellow to Green

Odor

at 0.10 % in propylene glycol. sulfurous meaty cabbage

Odor Type

sulfurous

biological source

synthetic

Water Solubility 

Partly soluble in water, soluble in most organic solvents.

JECFA Number

795

LogP

0.38

CAS DataBase Reference

35250-53-4(CAS DataBase Reference)

EPA Substance Registry System

Pyrazineethanethiol (35250-53-4)

Safety Information

Hazard Codes 

T

Risk Statements 

25-36/37/38

Safety Statements 

36/37-45

RIDADR 

UN 2810 6.1/PG 3

WGK Germany 

3

RTECS 

KJ2551000

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

III

HS Code 

29339900

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

2-Pyrazinylethanethiol Usage And Synthesis

Chemical Properties

Colorless liquid

Chemical Properties

Pyrazine ethanethiol has a sulfurous, meaty, cabbage odor.

Uses

2-(2-Mercaptoethyl)pyrazine is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals, petrochemicals and dyestuff. It is used as a flavoring agent has a sulfurous type odor and a meaty type flavor.

Preparation

From 2-vinylpyrazine by reaction with thiolactic acid, followed by conversion of the thiolester to 2-(pyrazinyl) ethanethiol.

Taste threshold values

Taste characteristics at 2 ppm: meaty, sulfurous, pot roast and savory with nuances suitable for chicken and pork.

2-Pyrazinylethanethiol(35250-53-4)Related Product Information

• Ethanethiol
• Sulfachoropyrazine sodium
• Acetylpyrazine
• 2,5-Dimethyl pyrazine
• Isoniazid
• CEFTRIAXONE
• 2-Ethylhexyl mercaptoacetate
• Mercaptoacetic acid
• Pyrazinamide
• 2-Phenylethanethiol
• Pyrazine
• SODIUM ETHANETHIOLATE
• Glipizide
• 2-Mercaptoethanol
• β-PYRAZINYLETHIOL ACETATE
• 2-Pyrazinylethanethiol
• MERCAPTANS