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

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