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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. ...
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Cephalostatin-1, [4] is a steroidic 13-ringed pyrazine with the empirical formula C 54 H 74 N 2 O 10 that was isolated from Cephalodiscus gilchristi. It is a potent anti-cancer agent that causes cell death in the subnanomolar to picomolar ranges via an atypical apoptosis pathway.
Pyridazines are rare in nature, possibly reflecting the scarcity of naturally occurring hydrazines, common building blocks for the synthesis of these heterocycles.The pyridazine structure is a popular pharmacophore which is found within a number of herbicides such as credazine, pyridafol and pyridate.
A quinoxaline, also called a benzopyrazine, in organic chemistry, is a heterocyclic compound containing a ring complex made up of a benzene ring and a pyrazine ring. It is isomeric with other naphthyridines including quinazoline, phthalazine and cinnoline. [3]
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).
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.