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Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C 4 H 4 N 2. It is a symmetrical molecule with point group D 2h. Pyrazine is less basic than pyridine, pyridazine and pyrimidine. It is a "deliquescent crystal or wax-like solid with a pungent, sweet, corn-like, nutty odour". [3]
Pages in category "Pyrazines" The following 40 pages are in this category, out of 40 total. This list may not reflect recent changes. ...
2,6-Dimethylpyrazine is also used as flavor additive and odorant in foods such as cereals [6] and products such as cigarettes. It occurs naturally in baked potato, black or green tea, crispbread, French fries, malt, peated malt, raw asparagus, roasted barley, roasted filberts or pecans, squid, wheat bread, wild rice (Zizania aquatica), and wort. [6]
Chemical structure of isopropyl methoxy pyrazine (IPMP) Methoxypyrazines are a class of chemical compounds that produce odors. The odors tend to be undesirable, as in the case of certain wines, [1] or as defensive chemicals used by insects such as Harmonia axyridis which produces isopropyl methoxy pyrazine (IPMP).
Chemically, acetylpyrazine is a pyrazine and a ketone. [2] Natural occurrence ... Uses. It is used in frozen dairy products such as ice cream.
2,3,5-Trimethylpyrazine (chemical formula C 7 H 10 N 2) is one of the most broadly used edible synthesis fragrances. It comes from baked food, fried barley , potatoes, and peanuts. 2,3,5-Trimethylpyrazine is used for the flavor in cocoa, coffee, chocolate, potato, cereal, and fried nuts.
It is a dibenzo annulated pyrazine, and the parent substance of many dyestuffs, such as the toluylene red, indulines, and safranines (and the closely related eurhodines). [2] Phenazine crystallizes in yellow needles, which are only sparingly soluble in alcohol. Sulfuric acid dissolves it, forming a deep-red solution.
Piperazine hydrate, piperazine adipate and piperazine citrate (used to treat ascariasis and enterobiasis [10]) are the most common anthelmintic piperazine compounds. These drugs are often referred to simply as "piperazine" which may cause confusion between the specific anthelmintic drugs, the entire class of piperazine-containing compounds, and ...