3-Aminoquinoxaline-2-carboxamide CAS 67568-30-3
| CAS No. | 67568-30-3 |
| Molecular Formula | C9H8N4O |
| Molecular Weight | 188.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies 3-Aminoquinoxaline-2-carboxamide (CAS 67568-30-3), a certified reference material (molecular formula C9H8N4O, MW 188.19 g/mol) for analytical method development and quality control.
The molecular framework of 3-Aminoquinoxaline-2-carboxamide (C9H8N4O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H8N4O |
| Molecular Weight | 188.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 4 |
Related Aminoquinoxaline Standards
- 3-aminoquinoxaline-2-carboxylic acid (CAS 85414-82-0)
- 7-Aminoquinoxaline-2,5-diol (CAS 860367-75-5)
- Methyl 3-aminoquinoxaline-2-carboxylate (CAS 1071627-75-2)
- Methyl 8-aminoquinoxaline-6-carboxylate (CAS 1706445-71-7)
- 3-Aminoquinoxaline-2-carbaldehyde (CAS 67570-54-1)
- 6-Aminoquinoxaline-5-carbonitrile (CAS 130278-26-1)
- 3-Aminoquinoxaline-2-carbonitrile (CAS 36597-16-7)
- 8-Aminoquinoxaline-5-carbonitrile (CAS 573758-47-1)
Recommended Standards
- 3-Aminocinnoline-4-carboxamide (CAS 87954-01-6)
- 4-(4-Aminopyrimidin-2-yl)pyridine 1-oxide (CAS 61310-48-3)
- 3,5-Difluoro-4-(methylthio)benzaldehyde (CAS 473299-49-9)
- 4-(6-Methyl-1,2,4,5-tetrazin-3-yl)phenol (CAS 58884-35-8)
- tert-Butyl 4,6-difluoro-3-iodo-1H-indazole-1-carboxylate (CAS 944899-10-9)
- 4-(2-Ethylphenyl)but-3-en-2-one (CAS 1344813-73-5)
- 1-(furan-2-yl)-7-oxa-2-azaspiro[3.5]nonane hydrochloride (CAS 1955498-64-2)
- 1-(3-Phenyl-4,5-dihydroisoxazol-5-yl)ethanone (CAS 54606-00-7)
- 2-([(2-Nitrophenyl)methyl]sulfanyl)ethan-1-amine (CAS 1016891-94-3)
- (1-((2-Chlorothiazol-5-yl)methyl)piperidin-2-yl)methanol (CAS 1289385-20-1)
- 1-Ethyl-2-methyl-1H-benzo[d]imidazole-5-carboxamide (CAS 62306-07-4)
- 4-((3-Chlorobenzyl)oxy)-3-fluorobenzaldehyde (CAS 1443305-85-8)
- 2,4-Dihydro-5-[(3-methylphenoxy)methyl]-4-(2-propen-1-yl)-3H-1,2,4-triazole-3-thione (CAS 331272-48-1)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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