2,6-Dimethylpyrazine

CAS NO.：108-50-9
Empirical Formula: C6H8N2
Molecular Weight: 108.14
MDL number: MFCD00006148
EINECS: 203-589-4
SAFETY DATA SHEET (SDS)
Update Date: 2024-11-20 15:18:15

What is 2,6-Dimethylpyrazine?

Chemical properties

PALE YELLOW LOW MELTING CRYSTALLINE SOLID

Chemical properties

2,6-Dimethylpyrazine has a nutty, coffee-like odor.

Occurrence

Reported found in cocoa products, coffee, diary products, peanuts, pecans, filberts, potato products, rum, whiskey, soy products, tomato puree, baked potato, cooked beef and chicken, mushroom, roasted barley, roasted pecan, tea, and Virginia tobacco; reported found in grilled beef; also a volatile flavor component of potato chips. Also reported found in cheeses, tamarind, coriander seed and corn tortilla

The Uses of 2,6-Dimethylpyrazine

2,6-Dimethylpyrazine is used Preparation of chocolate, coffee, meat and nuts and other flavors

Preparation

By condensation of 1,2-diaminopropane, followed by column chromatography to separate the 2,6-methylpyrazine from the 2,5-dimethylpyrazine.

Definition

ChEBI: 2,6-Dimethylpyrazine is a member of pyrazines.

Aroma threshold values

Detection: 400 to 1500 ppb. Aroma characteristics at 1.0%: musty, cocoa powdery, tobacco, dry leaf tea, earthy mushroom cap and potato-like, meaty, roasted peanut shell, and coffee.

Taste threshold values

Taste characteristics at 5.0 ppm: musty and earthy, nutty peanut shell, cocoa powdery, earthy coffee, yeasty, woody, milk roasted peanut.

Properties of 2,6-Dimethylpyrazine

Melting point:	35-40 °C(lit.)
Boiling point:	154 °C(lit.)
Density	0.965(50.0000℃)
refractive index	1.5000
FEMA	3273 \| 2,6-DIMETHYLPYRAZINE
Flash point:	127 °F
storage temp.	-20°C
solubility	Chloroform, Methanol (Slightly)
form	Low Melting Crystalline Solid
pka	2.49±0.10(Predicted)
color	Pale yellow
PH	7 (H2O, 20℃)
Odor	at 10.00 % in dipropylene glycol. ethereal cocoa nutty roasted roasted meaty beefy brown coffee buttermilk
Water Solubility	Soluble in water.
JECFA Number	767
BRN	1726
Dielectric constant	2.6499999999999999
CAS DataBase Reference	108-50-9(CAS DataBase Reference)
NIST Chemistry Reference	Pyrazine, 2,6-dimethyl-(108-50-9)
EPA Substance Registry System	Pyrazine, 2,6-dimethyl- (108-50-9)

Safety information for 2,6-Dimethylpyrazine

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02 Corrosion Corrosives GHS05 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H228:Flammable solids H302:Acute toxicity,oral H315:Skin corrosion/irritation H318: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. P240:Ground/bond container and receiving equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. 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.