2,3,5-Trimethylpyrazine химические свойства, назначение, производство
Химические свойства
CLEAR YELLOW LIQUID
Вхождение
Reported present in bakery products, roasted barley, cocoa products, coffee, dairy products, meat, peanuts,
filberts, pecans, popcorn, potato products, rum and whiskey, soy products, raw asparagus, baked potato, wheaten bread, crispbread,
Swiss cheese, coffee, black tea, green tea, roasted barley, roasted filbert, heated beef, roasted peanut, soybean, raw beans, coriander
seed, scallop, guava, kohlrabi, bell pepper, blue, Swiss and Gruyere cheese, boiled egg, fatty fish, beer, sherry, barley, peanut, oat
products, coconut, beans, mushroom, trassi, almond, macadamia nut, sesame seed, coriander seed, rice, licorice, sweet corn, malt,
peated malt, wort, krill, fermented shrimp, crab, okra, crayfish, clam, scallop and squid.
Использование
Trimethylpyrazine is a key aroma compound of dark chocolates differing in organoleptic properties.
Подготовка
From 2,5-dimethylpyrazine by ring alkylation with MeLi; by condensing propylenediamine with 2,3-butanedione.
Общее описание
2,3,5-Trimethylpyrazine is present in brown cheese.
Профиль безопасности
Moderately toxic by
ingestion. Combustible liquid. When heated
to decomposition emits toxic fumes of NOx.
2,3,5-Trimethylpyrazine препаратная продукция и сырье
сырьё
препарат