293407
2-Quinoxalinecarboxylic acid
97%
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About This Item
Empirical Formula (Hill Notation):
C9H6N2O2
CAS Number:
Molecular Weight:
174.16
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Quality Level
Assay
97%
mp
208 °C (dec.) (lit.)
functional group
carboxylic acid
SMILES string
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)
InChI key
UPUZGXILYFKSGE-UHFFFAOYSA-N
General description
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
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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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
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
M J Hutchinson et al.
The Analyst, 127(3), 342-346 (2002-05-09)
A method is described for the quantitative determination of quinoxaline-2-carboxylic acid (QCA), the marker residue for the veterinary drug carbadox, in swine liver. Tissue is subjected to alkaline hydrolysis followed by liquid-liquid extraction. QCA residues are cleaned up using automated
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
M Rutalj et al.
Food additives and contaminants, 13(8), 879-882 (1996-11-01)
The concentration of quinoxaline-2-carboxylic acid (QCA) determined by HPLC after alkaline hydrolysis of liver and muscle of swine, ranged from < 3 ng/g to 45.3 ng/g in liver, and from < 3 ng/g to 10.8 ng/g in muscle samples. After
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