quinoxaline, phenazine, pteridine, flavin and their derivatives), demonstrate unique physico-chemical properties that are caused by a low lying unoccupied -molecular orbital and by the ability to act as a bridging ligand. white crystals or powder OU Chemical Safety Data (No longer updated) More details. It is weakly basic, and with hydrochloric acid it forms a crystalline hydrochloride salt which melts at 145147 C. Chemical Properties. Application Pyrazine can be used: Here, we report a detailed characterization for the EINECS NO. Skip to content. Parallel optimization of ADME properties led to the identification of potent and selective inhibitors of PKMYT1. Pyrazine has two nitrogen atoms at the 1,4-positions to replace carbon atoms of the benzene ring, and it is anticipated to have many functionalities and reactivities in comparison to the benzene analogues. Pyrazine. Pyrazine nucleic acid (PzNA) which has a backbone structurally similar to glycerol nucleic acid (GNA), contain pyrazine derived nucleosides as informational elements that may exhibit base pairing properties similar to the pyrimidines present in RNA. CAS 290-37-9, molar mass 80.08 g/mol. Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file The 3d structure may be viewed using Java or Javascript. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring. Histamine functions as a secreted signal in immune an The simplest member of the pyrazine family is pyrazine itself, a colourless, water-soluble solid with molecular formula C 4 H 4 N 2. However, understanding the intricate interplay between chemistry, structure, and conductivity in -conjugated 2D COFs remains elusive. It is also known as Azine or Pyridine. 2,3,5,6-Tetrakis(2'-pyridyl)pyrazine forms an iron(II) complex containing 2 moles of ligand for each mole of iron. The strong electron withdrawing ability of the pyrazine nucleus make possible various nucleophilic substitution reactions in the nucleus. Chemical warfare agents (Lewisite, Sarin, Soman, Sulfur Mustard, Tabun and VX Nerve Agent) have been tested at 22C and 50% relative humidity per military standard MIL-STD-282. 1.10.1 g/cm3. Histamine functions as a secreted signal in immune an Description. pyrazine - Nature. SRD 103b Thermo Data Engine (TDE) for pure compounds, binary mixtures and chemical reactions Highly flammable. Pyrazine, (chlorome thyl)-More Validated by Experts, Validated by Users, Non-Validated, Removed by Users. See More 2-BUTYL PYRAZINE Properties Chemical Pesticides,Food Additives,Feed Additive,Active Pharm Ingredients,Chemical Materials,Chem&Pharm Intermediates Pyrazines are important contributors to the flavor of various roasted, toasted, or similarly heated foods. 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".. Pyrazine and a variety of alkylpyrazines are flavor and aroma compounds found in deliquescent crystals or wax-like solid with a pungent, sweet, corn-like, nutty odour Food and Agriculture Organization of the United Nations Pyrazine. Get reviews, hours, directions, coupons and more for Reagent Chemical And Research Inc at 2985 Gordy Pkwy, Marietta, GA 30066. A new family of azaacenes has been designed and synthesized by incorporating the electron-withdrawing sp 2-hybridized nitrogen of pyrazine and electron-donating nitrogen of carbazole in a molecular skeleton.Two different conjugated lengths of 8-ring aza-nonacene and 10-ring aza-undecene have been achieved by an efficient condensation reaction. Some reports compare the taste of pyrazine to cooked spinach or rancid peanuts: Occurrence Density 1. 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 crystals or wax-like solid with a pungent, sweet, corn-like, nutty odour". colorless crystals. Pigment & Dyestuff; Organic Intermediate; Organic chemical; Flavour & Fragrance; Pyrazine. 55 C (131 F; 328 K) c.c. Except where otherwise noted, data are given for materials in their standard state (at 25 C [77 F], 100 kPa). Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C 4 H 4 N 2 . Pyrazine is a symmetrical molecule with point group D 2h. Enter the email address you signed up with and we'll email you a reset link. Histamine functions as a secreted signal in immune an It is a "deliquescent crystal or wax-like solid with a pungent, sweet, corn-like, nutty odour". Boiling Point. Based in Buford, ranks in the top 99% of licensed contractors in Georgia. Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. Is a weak monobasic base. 2-Methylpyrazine can be used: As a ligand to prepare coordination polymer [Ag (CF 3 CO 2 ) (2-Me-Pyz)], wherein 2-Me-Pyz is 2-methylpyrazine. compounds with partial pyrazine structure (e.g. 80.088. Is this your business? Pyridine is miscible with water and virtually all organic solvents. [0003] Histamine, a low molecular weight biogenic amine, is a potent chemical mediator of normal and pathological physiology. We have evaluated and recommended the set of vaporisation and formation enthalpies of pyrazine derivatives at 298.15 K as the reliable benchmark properties for further thermochemical calculations. [0003] Histamine, a low molecular weight biogenic amine, is a potent chemical mediator of normal and pathological physiology. Pyrazine, any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of nitrogen. Molecular Weight. Pyrazine is a tertiary amine, and is a weaker base than pyridine.17 In general, pyrazine behaves as monoacidic bases18 and form diacidic salts under anhydrous conditions. use Safety references References Other Blenders Uses Occurrence Synonyms Articles Notes isobutyl methoxypyrazine2 methoxy isobutylpyrazineSupplier SponsorsAdvanced Biotech. Gas phase molar enthalpies of formation of pyrazine derivatives calculated by the high-level quantum-chemical method G4 were in agreement with the Pyrazine Specialties (404) 524-6744 Add Website Map & Directions 792 Windsor St SW Atlanta, GA 30315 Write a Review. FIELD OF THE INVENTION. See More DIMETHYLPYRAZINE-2,6-DICARBOXYLATE Properties Organic Intermediates,Chemical Catalyst,Flavors and Fragrances,Agrochemicals,Chemical Pesticides,Food Additives Protective Coating Applicators; Calcium Chloride; - Find MSDS or SDS, a COA, data sheets and more information. Experimental Physico-chemical Properties. The chemical composition of minerals of the pyroxene group can be expressed by the general formula XYZ 2 O 6, in which X= Na +, Ca 2+, Mn 2+, Fe 2+, Mg 2+, Li +; Y= Mn 2+, Fe 2+, Mg 2+, Fe 3+, Al 3+, Cr 3+, Ti 4+; and Z= Si 4+, Al 3+. CAS Number. Chat now for more business. -Conjugated two-dimensional covalent organic frameworks (2D COFs) are emerging as a novel class of electroactive materials for (opto)electronic and chemiresistive sensing applications. Contact China Manufactory Shaanxi Dideu Medichem Co. Ltd for the product 2-BUTYL PYRAZINE CAS NO 29460-91-1. Pyrazine is less basic than pyridine, pyridazine and pyrimidine. b]pyrazine: A High Performance Melt-cast Energetic Material and its Polycrystalline Properties Qing Ma,ab Zhipeng Lu,b Longyu Liao,b Jinglun Huang,b Dabin Liu,*a Jinshan Lib and Guijuan Fan*b a School of Chemical Engineering, Nanjing University of Science and Technology, Xiaolinwei 200, Nanjing, China Density. Get reviews, hours, directions, coupons and more for Reagent Chemical And Research Inc. Search for other Chemicals on The Real Yellow Pages. ?) 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. Chemical Properties of Pyrazine, ethyl- (CAS 13925-00-3) Download as PDF file Download as The simplest member of the pyrazine family is pyrazine itself, a colourless, water-soluble solid with molecular formula To prepare 2-cyanopyrazine via ammoxidation reaction using MoVPO catalyst. 0311. Landrew Properties LLC in Buford, GA | Photos | Reviews | 3 building permits. 118.613.0 C at 760 mmHg. Claim this Business More Types of Chemical Services & Equipment in Atlanta. Oxidation with hydrogen peroxide in acetic acid yields the N-oxide. P370 + P378: In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. Pyrazine, (chloromethyl)-Molecular Formula C 8 H 6 ClN 3; Average mass 179.606 Da; Monoisotopic mass 179.025024 Da; ChemSpider ID 8617707 Pyrazine is less basic than pyridine, pyridazine and pyrimidine. Signal Word: Danger: Storage class: 4.1B Flammable solid hazardous materials: WGK: WGK 3 highly hazardous to water: Articles of pyrazine-2,3,5,6-tetracarboxylic acid are included as well. Chemical Properties: white crystals or powder: Chemical Properties: Pyrazine has a strong pyridine-like odor. Lookchem Provide Cas 129242-46-2 Basic information: structure,molecular formula,safety information, MSDS, technical documents, related articles, process route, Upstream and downstream products & more at Lookchem. Histamine functions as a secreted signal in immune an pyrazine, any of a class of organic compounds of the heterocyclic series characterized by a ring structure containing four atoms of carbon and two of nitrogen. In this study initial molecular structures of benzene, pyrazine, pyridazine, pyridine, pyrimidine, cyclopentadiene, furan, pyrrole and thiophene have been optimized at the ground (S 0) and excited (S 1) states using density functional theory (DFT) and time-dependent density functional theory (TD-DFT), respectively.We also evaluate the distribution patterns of HOMOs Chemsrc provides pyrazine-2,3,5,6-tetracarboxylic acid(CAS#:43193-60-8) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Melting point 54 c. In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products: SRD 103a Thermo Data Engine (TDE) for pure compounds. Other names: p-Diazine; Paradiazine; Piazine; 1,4-Diazabenzene; 1,4-Diazine Permanent link for this species. influence on both the basicity and the aromatic properties of the pyrazines. Stability: Stable. Chemical and physical properties of Pyrazine, ethyl-. [0003] Histamine, a low molecular weight biogenic amine, is a potent chemical mediator of normal and pathological physiology. It has a sour, putrid, and fish-like odour. Pyrimidine (/ p r . m d i n, p a r . m d i n /) is an aromatic heterocyclic organic compound similar to pyridine. Pyridine is a heterocyclic compound which is a colourless to yellow liquid with a chemical formula C 5 H 5 N. It is a basic heterocyclic organic compound. Pyrazine is a heterocyclic aromatic organic compound and can be reacted to obtain diverse pyrazine derivatives. We also Provide suppliers and manufacturers and reference price for 129242-46-2. Chemical and physical properties of Pyrazine. Use this link for bookmarking this species for future reference. Its hexahydro derivative, piperazine , was first made in 1888; several of its derivatives find use as chemical raw materials. Predicted data is generated using the US Environmental Protection Agencys EPISuite. Chat now for more business. It is a symmetrical molecule with point group D2h. Chemical Properties of Pyrazine (CAS 290-37-9) Download as PDF file Download as Excel file Download as 2D mole file Predict properties The pyrazine ring is part of many polycyclic compounds of biological or industrial significance. In aqueous solution, the wavelength MOL WT. Customize this page. Experimental Melting Point: 221-226 C Alfa Aesar H64478: 226 C Biosynth W-206416: 221-226 C Sigma-Aldrich ALDRICH-720321: Jinan Boss Chemical Industry Co.,Ltd +86 531 68657995 +86 13280017993; sales@bosschemical.com; HOME; Products. Pyrazine and a variety of alkylpyrazines are flavor and aroma compounds found in baked and roasted goods. RSC Advances 2016, 6 (57) , 52009-52025. Pyrazine is a heterocyclic aromatic organic compound with the chemical formula C4H4N2. Contact China Manufactory Shaanxi Dideu Medichem Co. Ltd for the product DIMETHYL PYRAZINE-2,6-DICARBOXYLATE. Pyrazine is a heterocyclic aromatic organic compound and can be reacted to obtain diverse pyrazine derivatives. The structure is like benzene, with one methine group replaced by a nitrogen atom. Pyrazine for synthesis. In this work, Sn and Ag doped PbS/PVA nanocomposites, in three different concentrations were successfully prepared using the low-cost and simple method of chemical bath deposition (CBD). Pyrazine Chemical Properties,Uses,Production. Pyrazine, hygroscopic white solid, is an aromatic nitrogen compound characterized by a ring structure contains 4 carbon atoms with two nitrogen atoms at 1 and 4 positions (paradiazine); melting at 55 - 56 C, boiling at 115 - 116 C. Pyrazine is freely soluble in water. As a ligand in the synthesis of fluorescent silver (I)-saccharinato complex, which exhibits blue luminescence at room temperature. Pyrazine is a 1,4-diazine and an electron-deficient N-heteroarene found in several natural products, APIs, agrochemicals, and functional materials. Pyrazine is seldom prepared. Draw Lewis structures for pyrazine (C4H4N2) showing the two - Wyzant Pyrazine, its derivatives as well as other 1,4-diazines, i.e. It is a symmetrical molecule with point group D2h. [0003] Histamine, a low molecular weight biogenic amine, is a potent chemical mediator of normal and pathological physiology. The present invention is related to compounds having P2X7 modulating properties, pharmaceutical compositions Pyrazine forms monoquaternary salts19,20 with alkyl halides which are Boiling point 115~116 deg C. Soluble in water and ether, and water can form a constant boiling mixture. Most chemical properties of pyridine are typical of a heteroaromatic compound. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 1.70 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 328.69 (Adapted Stein & Brown method) Melting Pt (deg C): 120.49 (Mean or Weighted MP) VP(mm Hg,25 deg 290-37-9. Pyrazine is seldom prepared. Coordination chemistry of pyrazine derivatives analogues of PZA: design, synthesis, characterization and biological activity.
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