N-(2-hydroxyethyl)-3-methylquinoxaline-2-carboxamide CAS 104634-22-2
| CAS No. | 104634-22-2 |
| Molecular Formula | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of N-(2-hydroxyethyl)-3-methylquinoxaline-2-carboxamide (C12H13N3O2) is characterized by an amino-acid-derived structure, 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).
CATO supplies N-(2-hydroxyethyl)-3-methylquinoxaline-2-carboxamide (CAS 104634-22-2), a certified reference material (molecular formula C12H13N3O2, MW 231.25 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), N-(2-hydroxyethyl)-3-methylquinoxaline-2-carboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
Related N Standards
- N-(2-Hydroxyethyl)-4-(1H-pyrazol-1-yl)benzamide (CAS 1017782-46-5)
- 4-(4-(2-Hydroxyethyl)-5-methyloxazol-2-yl)benzaldehyde (CAS 650602-35-0)
- 5-((2-Hydroxyethyl)imino)-7-(methylamino)isoquinolin-8(5H)-one (CAS 662167-20-6)
- 5-(2-hydroxyethyl)-6-methyl-2-(pyridin-2-yl)pyrimidin-4-ol (CAS 874765-37-4)
- Methyl 2-(1-hydroxyethyl)quinoline-4-carboxylate (CAS 66326-01-0)
- N-(2-Hydroxyethyl)-4-(1H-imidazol-1-yl)-benzenecarboxamide (CAS 952183-34-5)
- n-(2-Hydroxyethyl)-2-methoxybenzenesulfonamide (CAS 1156256-82-4)
- 2-(4-(2-Hydroxyethyl)piperazin-1-yl)benzonitrile (CAS 120116-37-2)
Recommended Standards
- methyl 5-amino-1-benzyl-1H-imidazole-4-carboxylate (CAS 104316-76-9)
- Ethyl 5-oxo-2-phenyl-4,5-dihydro-1H-pyrrole-3-carboxylate (CAS 105194-22-7)
- 1-(4-((5-Methylisoxazol-3-yl)methoxy)phenyl)ethan-1-one (CAS 1042646-46-7)
- 4-(Quinolin-8-yloxy)butanoic acid (CAS 105338-15-6)
- 2-(2-(Isopropylthio)pyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352489-21-4)
- 2-chloro-5-methyl-1H-1,3-benzodiazole (CAS 4887-94-9)
- 1-(5-Chloro-2-methoxyphenyl)cyclopropane-1-carboxylic acid (CAS 1039952-36-7)
- 4-Bromo-3,5-dimethoxypyridine (CAS 1033610-45-5)
- Methyl (2S,3R)-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}-3-(triphenylmethoxy)butanoate (CAS 1220123-46-5)
- 4-[4-(Piperidinocarbonyl)phenyl]benzaldehyde (CAS 1393442-40-4)
- 2-Acetamido-N-methyl-N-(1-phenyl-1H-pyrazol-5-yl)benzamide (CAS 88277-68-3)
- Atrasentan Impurity 186 (CAS CATO-C4X-3347186)
- 4-Chloro-5-(2,2,2-trifluoroethoxy)pyridazin-3(2H)-one (CAS 1346697-62-8)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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