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13708-12-8

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13708-12-8 Usage

Description

5-Methylquinoxaline has a burnt, roasted, nutty, roasted com, coffee odor.

Chemical Properties

Different sources of media describe the Chemical Properties of 13708-12-8 differently. You can refer to the following data:
1. 5-Methylquinoxaline has a burnt, roasted, nutty, roasted corn, coffee odor
2. Amber liquid

Occurrence

Reported found in coffee and roasted almonds

Uses

5-Methylquinoxaline was used in the synthesis of 1,12-diphenyl-5-methyl-1,12,12a,12b-tetrahydrobis[1,2,4]triazolo[4,3-a:3′,4′-c]quinoxaline bis-cycloadducts.

Definition

ChEBI: A quinoxaline derivative in which the quinoxaline (1,4-naphthyridine) skeleton is substituted at C-5 with a methyl group.

Taste threshold values

Taste characteristics at 2 ppm: nutty, roasted, peanut and pyrazine-like with yeasty, corn-chip nuance.

General Description

5-Methylquinoxaline has been identified as one of the key volatile aroma compounds in roasted almonds{170] and roasted coffee.

Check Digit Verification of cas no

The CAS Registry Mumber 13708-12-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,7,0 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 13708-12:
(7*1)+(6*3)+(5*7)+(4*0)+(3*8)+(2*1)+(1*2)=88
88 % 10 = 8
So 13708-12-8 is a valid CAS Registry Number.
InChI:InChI=1/C9H8N2/c1-7-3-2-4-8-9(7)11-6-5-10-8/h2-6H,1H3

13708-12-8 Well-known Company Product Price

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  • (Code)Product description
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  • Packaging
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  • Alfa Aesar

  • (A19300)  5-Methylquinoxaline, 98%   

  • 13708-12-8

  • 1g

  • 467.0CNY

  • Detail
  • Alfa Aesar

  • (A19300)  5-Methylquinoxaline, 98%   

  • 13708-12-8

  • 5g

  • 1513.0CNY

  • Detail
  • Aldrich

  • (272310)  5-Methylquinoxaline  98%

  • 13708-12-8

  • 272310-1G

  • 423.31CNY

  • Detail

13708-12-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 10, 2017

Revision Date: Aug 10, 2017

1.Identification

1.1 GHS Product identifier

Product name 5-METHYLQUINOXALINE

1.2 Other means of identification

Product number -
Other names 5-methyl quinoxaline

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only. Food additives -> Flavoring Agents
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:13708-12-8 SDS

13708-12-8Related news

5-METHYLQUINOXALINE (cas 13708-12-8) as a versatile mono-, bi- and tridentate ligand in Palladium(II) chemistry. Crystal structures of trans-[Pd(OAc)2(N1-C8H5N2Me-5)2] and [Pd(OAc)(C,N4-CH2C8H5N2-5)(PPh3)]09/07/2019

To study the potential coordination versatility of 5-methylquinoxaline, the preparation of complexes which contain it as a mono-, bi- or tridentate ligand was carried out. On reaction with [Pd(OAc)2]3 it coordinates to the metal through its less sterically blocked nitrogen atom (N(1), distal to ...detailed

13708-12-8Relevant articles and documents

Effect of Blocked ortho-Positions on the Cyclisation of Aryl-1,4-diazabuta-1,3-dienyl Radicals

McNab, Hamish,Smith, Graeme S.

, p. 996 - 997 (1982)

Indoles are the main products from the cyclisation of (2,6-dimethylphenyl)-1,4-diazabuta-1,3-dienyl radicals, together with small amounts of quinoxalines; both ring systems arise predominantly via an intermediate spirodienyl radical.

Palladium Nanoparticles Stabilized by Metal–Carbon Covalent Bonds as an Expeditious Catalyst for the Oxidative Dehydrogenation of Nitrogen Heterocycles

Sun, Xiao-Tao,Zhu, Jie,Xia, Yun-Tao,Wu, Lei

, p. 2463 - 2466 (2017)

The first method for the dehydrogenation of nitrogen heterocycles catalyzed by a palladium nanocatalyst was developed. Carbon–metal covalent-bond-stabilized nanoparticles were found to be efficient for the dehydrogenation process in the presence of tert-butyl hydroperoxide. A variety of N-heterocycles were transformed into functionalized quinolines in medium to excellent yields in water as the solvent under mild conditions by a simple operation.

Acceptorless Dehydrogenation of N-Heterocycles and Secondary Alcohols by Ru(II)-NNC Complexes Bearing a Pyrazoyl-indolyl-pyridine Ligand

Wang, Qingfu,Chai, Huining,Yu, Zhengkun

, p. 584 - 591 (2018/03/08)

Ruthenium(II) hydride complexes bearing a pyrazolyl-(2-indol-1-yl)-pyridine ligand were synthesized and structurally characterized by NMR analysis and X-ray single crystal crystallographic determinations. These complexes efficiently catalyzed acceptorless dehydrogenation of N-heterocycles and secondary alcohols, respectively, exhibiting highly catalytic activity with a broad substrate scope. The present work has established a strategy to construct highly active transition metal complex catalysts and provides an atom-economical and environmentally benign protocol for the synthesis of aromatic N-heterocyclic compounds and ketones.

Acceptorless dehydrogenation of nitrogen heterocycles with a versatile iridium catalyst

Wu, Jianjun,Talwar, Dinesh,Johnston, Steven,Yan, Ming,Xiao, Jianliang

supporting information, p. 6983 - 6987 (2013/07/26)

Gas up: A cyclometalated iridium complex is found to catalyze the dehydrogenation of various benzofused N-heterocycles, thus releasing H 2. Driven by as low as 0.1 mol % catalyst, the reaction affords quinolines, indoles, quinoxalines, isoquinolines, and β-carbolines in high yields. Copyright

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