| CAS No. | 1023532-71-9 |
| Molecular Formula | C21H17N3O |
| Molecular Weight | 327.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The molecular framework of 1023532-71-9 5-methyl-3-phenyl-4-{3H,4H,9H-pyrido[3,4-b]indol-1-yl}-1,2-oxazole MS-9166 (C21H17N3O) 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 its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
CATO supplies 1023532-71-9 5-methyl-3-phenyl-4-{3H,4H,9H-pyrido[3,4-b]indol-1-yl}-1,2-oxazole MS-9166 (CAS 1023532-71-9), a certified reference material (molecular formula C21H17N3O, MW 327.38 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.
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.
| Molecular Formula | C21H17N3O |
| Molecular Weight | 327.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 3 |