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Sigma-Aldrich

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

Assay

97%

mp

208 °C (dec.) (lit.)

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Joshua A Hagen et al.
Sensors (Basel, Switzerland), 11(7), 6645-6655 (2011-12-14)
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Alex P Praseuth et al.
Biotechnology progress, 24(1), 134-139 (2008-01-05)
Proficient production of the antitumor agent triostin A was developed using engineered Escherichia coli (E. coli). The bacterium played host to 15 genes that encode integral biosynthetic proteins which were identified and cloned from Streptomyces lasaliensis. In this study, triostin
Kento Koketsu et al.
Organic letters, 8(21), 4719-4722 (2006-10-06)
[reaction: see text] Little is known about how quinoxaline-2-carboxylic acid (QC) is synthesized in nature. On the basis of analysis of echinomycin biosynthetic gene clusters as well as feeding experiments with labeled precursors, we have proposed a biosynthetic pathway to
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
Synthetic Approaches to Quinoxaline Antibiotics. Synthesis of Bisquinoxaloyl Derivatives1a.
Koppel HC, et al.
The Journal of Organic Chemistry, 28(4), 1119-1122 (1963)

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