| CAS No. | 652143-68-5 |
| Molecular Formula | C27H18N4O |
| Molecular Weight | 414.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
4-(Oxazolo[4,5-b]quinoxalin-2-yl)-N,N-diphenylaniline (CAS 652143-68-5), molecular formula C27H18N4O and molecular weight 414.46 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(Oxazolo[4,5-b]quinoxalin-2-yl)-N,N-diphenylaniline (C27H18N4O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 21.0, corresponding to approximately 21 ring(s) or double-bond equivalent(s). With a molecular weight of 414.46 g/mol, it falls into the moderately-high-molecular-weight range. 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 4-(Oxazolo[4,5-b]quinoxalin-2-yl)-N,N-diphenylaniline 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.
| Molecular Formula | C27H18N4O |
| Molecular Weight | 414.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |