108-50-9 2,6-DimethylpyrazineCAS NO.: 108-50-9 CAS NO.108-50-9

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Description	2,6-Dimethylpyrazine is one of alkylpyrazines. It occurs naturally in cocoa products, coffee, dairy products, meat, peanuts, pecans, filberts, potato products, rum and whisky, soy products. It is used as a flavoring agent in foods such as cereals and products such as cigarettes.
Reference	Glovanni Fenaroli, Fenaroli's Handbook of Flavor Ingredients, 1975, ISBN 0-87819-533-5
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
Preparation	By condensation of 1,2-diaminopropane, followed by column chromatography to separate the 2,6-methylpyrazine from the 2,5-dimethylpyrazine.
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.