2-Ethyl-3-methylpyrazine

Synonym(s):filbert pyrazine

CAS NO.：15707-23-0
Empirical Formula: C7H10N2
Molecular Weight: 122.17
MDL number: MFCD00006150
EINECS: 239-799-8
SAFETY DATA SHEET (SDS)
Update Date: 2024-11-05 19:05:58

What is 2-Ethyl-3-methylpyrazine?

Chemical properties

clear colorless to slightly yellow liquid

Chemical properties

2-Ethyl-3-methylpyrazine has a strong, raw-potato, roasted, earthy odor.

Occurrence

Reported found in bakery products, roasted barley, coffee, peanuts, filberts, potato products, soy products, roasted and fried chicken, beef, pork, beer, rum, cocoa, coffee, tea, malt, shrimp and crayfish.

The Uses of 2-Ethyl-3-methylpyrazine

2-Ethyl-3-methylpyrazine is used in preparation of Chinese chestnut pyrolyzate and their application to e-cigarette.

The Uses of 2-Ethyl-3-methylpyrazine

Food additive.

Preparation

By condensation of ethylenediamine with 2,3-pentanedione.

Definition

ChEBI: 2-Ethyl-3-methylpyrazine, 9CI is a member of pyrazines.

Aroma threshold values

Detection: 2 ppm (130 ppb in water)

Taste threshold values

Taste characteristics at 10 ppm: nutty, peanut, musty corn-like with raw and oily nuances.

Hazard

Moderately toxic by ingestion.

Flammability and Explosibility

Not classified

Safety Profile

Moderately toxic by ingestion. When heated to decomposition it emits acrid smoke and irritating fumes.

Properties of 2-Ethyl-3-methylpyrazine

Boiling point:	57 °C10 mm Hg(lit.)
Density	0.987 g/mL at 25 °C
vapor pressure	1.74hPa at 20℃
FEMA	3155 \| 2-ETHYL-3-METHYLPYRAZINE
refractive index	n20/D 1.503(lit.)
Flash point:	138 °F
storage temp.	Sealed in dry,Room Temperature
solubility	sparingly soluble
form	neat
pka	1.94±0.10(Predicted)
color	Colorless to Light yellow
Specific Gravity	0.987
Odor	at 0.10 % in dipropylene glycol. nutty peanut musty corn raw earthy bread
Water Solubility	sparingly soluble
JECFA Number	768
BRN	956775
CAS DataBase Reference	15707-23-0(CAS DataBase Reference)
NIST Chemistry Reference	Pyrazine, 2-ethyl-3-methyl-(15707-23-0)
EPA Substance Registry System	Pyrazine, 2-ethyl-3-methyl- (15707-23-0)

Safety information for 2-Ethyl-3-methylpyrazine

Signal word	Warning
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H226:Flammable liquids H302:Acute toxicity,oral H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.