Ethyl 4-benzyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-carboxylate CAS 261729-53-7
| CAS No. | 261729-53-7 |
| Molecular Formula | C19H16N4O2 |
| Molecular Weight | 332.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 4-benzyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-carboxylate is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 4-benzyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-carboxylate (CAS 261729-53-7) is a high-purity analytical reference standard with the molecular formula C19H16N4O2 and a molecular weight of 332.36 g/mol.
The molecular framework of Ethyl 4-benzyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-carboxylate (C19H16N4O2) is characterized by a steroid core, 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).
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 manufactures Ethyl 4-benzyl-[1,2,4]triazolo[4,3-a]quinoxaline-1-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C19H16N4O2 |
| Molecular Weight | 332.36 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 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
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