3-Methyl-4-(4-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine CAS 338747-54-9
| CAS No. | 338747-54-9 |
| Molecular Formula | C17H17NO2 |
| Molecular Weight | 267.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 3-Methyl-4-(4-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine (CAS 338747-54-9), a certified reference material (molecular formula C17H17NO2, MW 267.32 g/mol) for analytical method development and quality control.
3-Methyl-4-(4-methylbenzoyl)-3,4-dihydro-2H-1,4-benzoxazine (C17H17NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C17H17NO2 |
| Molecular Weight | 267.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 5-Hexen-2-one (CAS 109-49-9)
- 3-((5-Methylpyridin-2-yl)oxy)propan-1-amine (CAS 1251139-16-8)
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