Ethyl 6-nitroquinoxaline-2-carboxylate CAS 4244-38-6
| CAS No. | 4244-38-6 |
| Molecular Formula | C11H9N3O4 |
| Molecular Weight | 247.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 6-nitroquinoxaline-2-carboxylate is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 6-nitroquinoxaline-2-carboxylate (CAS 4244-38-6) is a high-purity analytical reference standard with the molecular formula C11H9N3O4 and a molecular weight of 247.21 g/mol.
Based on its molecular formula C11H9N3O4, Ethyl 6-nitroquinoxaline-2-carboxylate contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H9N3O4 |
| Molecular Weight | 247.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- Methyl 8-nitroquinoxaline-6-carboxylate (CAS 1706445-46-6)
- 8-Nitroquinoxaline-6-carboxylic acid (CAS 1706445-74-0)
- 6-Nitroquinoxaline-2-carboxylic acid (CAS 4244-37-5)
- 6-Nitroquinoxaline-2,3-dione (CAS 2379-56-8)
- 2-Methyl-7-nitroquinoxaline (CAS 120885-31-6)
- 2-Methyl-5-nitroquinoxaline (CAS 76982-28-0)
- 2-Methyl-6-nitroquinoxaline (CAS 2942-02-1)
- 2-Nitroquinoxaline (CAS 117764-57-5)
Recommended Standards
- Ethyl 3-(1-amino-2,2,2-trifluoroethyl)benzoate (CAS 886368-99-6)
- Methyl (3S)-3-amino-3-[4-(trifluoromethyl)phenyl]propanoate (CAS 866867-74-5)
- Ethyl 2-amino-2-(4-(trifluoromethyl)phenyl)acetate (CAS 366018-90-8)
- Methyl 1-(3-nitrophenyl)-1H-imidazole-4-carboxylate (CAS 314061-15-9)
- 1-Ethyl-N-((1-isopropyl-1H-pyrazol-4-yl)methyl)-3-methyl-1H-pyrazol-4-amine hydrochloride (CAS 1856080-56-2)
- 2-Chloro-5-iodo-N-methylpyrimidin-4-amine (CAS 1093847-70-1)
- 5-Amino-2-chloro-N-propylbenzamide hydrochloride (CAS 1268982-79-1)
- Methyl 1,2,4-trimethyl-1H-pyrrole-3-carboxylate (CAS 14186-59-5)
- 3-Boc-Aminomethylpyrrolidine (CAS 149366-79-0)
- 3-Amino-4-methylbenzonitrile (CAS 60710-80-7)
- 2-(tert-Butylthio)-5-(piperidin-2-yl)pyridine (CAS 1352493-68-5)
- N-(6-chloropyridazin-3-yl)-4-methylbenzenesulfonamide (CAS 91349-44-9)
- (1R,5S,6S)-3-azabicyclo[3.2.0]Heptan-6-ol (CAS 162205-83-6)
- Human IgE Pentapeptide HEPP (CAS 62087-72-3)
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