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Autres documents

293407

Sigma-Aldrich

2-Quinoxalinecarboxylic acid

97%

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About This Item

Formule empirique (notation de Hill):
C9H6N2O2
Numéro CAS:
879-65-2
Poids moléculaire :
174.16
Numéro MDL:
MFCD00012334
Code UNSPSC :
12352100
ID de substance PubChem :
24857655

Pureté

97%

Pf

208 °C (dec.) (lit.)

Chaîne SMILES 

OC(=O)c1cnc2ccccc2n1

InChI

1S/C9H6N2O2/c12-9(13)8-5-10-6-3-1-2-4-7(6)11-8/h1-5H,(H,12,13)

Clé InChI

UPUZGXILYFKSGE-UHFFFAOYSA-N

Catégories apparentées

Description générale

Linear and Freundlich adsorption isotherm coefficient of 2-quinoxalinecarboxylic acid has been evaluated.

Application

2-Quinoxalinecarboxylic acid has been used in the preparation of:
  • N-(2-quinoxaloyl)-α-amino acids
  • bisquinoxaloyl (bisquinoxalinecarbonyl) derivatives

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315 - H319 - H335

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

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M D Rose et al.
Food additives and contaminants, 12(2), 177-183 (1995-03-01)
A method for the determination of residues of quinoxaline-2-carboxylic acid (QCA), the major metabolite of carbadox, in pig kidney has been developed. Tissue samples were subjected to alkaline hydrolysis, liquid-liquid extractions, ion-exchange chromatography and further extraction to concentrate the analyte
Yukun Yang et al.
Biosensors & bioelectronics, 47, 475-481 (2013-04-30)
Quinoxaline-2-carboxylic acid (QCA) is difficult to measure since only trace levels are present in commercial meat products. In this study, a rapid, sensitive and selective molecularly imprinted electrochemical sensor for QCA determination was successfully constructed by combination of a novel
Yujie Wu et al.
Journal of chromatography. A, 1146(1), 1-7 (2007-03-06)
A method of high-performance liquid chromatography with UV detection has been established for simultaneous quantitative determination of quinoxaline-2-carboxylic acid (QCA) and methyl-3-quinoxaline-2-carboxylic acid (MQCA), the marker residues for carbadox (CBX) and olaquindox (OLA), respectively, in the muscles and livers of
N Prabavathi et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 92, 325-335 (2012-03-27)
The FTIR and FT-Raman spectra of 2-quinoxaline carboxylic acid (2-QCA) has been recorded in the region 4000-450 and 4000-100 cm(-1), respectively. The conformational analysis, optimized geometry, frequency and intensity of the vibrational bands of 2-QCA were obtained by the density
Dapeng Peng et al.
Food chemistry, 237, 290-296 (2017-08-03)
An immunoaffinity column (IAC) for the selective purification of 3-methyl-quinoxaline-2-carboxylic acid (MQCA) from porcine muscle and the liver as well as the methods for its determination by high-performance liquid chromatography with ultraviolet detection (HPLC-UV) and a colloidal gold-based immunochromatographic assay
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