(R)-5,5-Diphenyl-4-methyl-2-oxazolidinone CAS 223906-37-4
| CAS No. | 223906-37-4 |
| Molecular Formula | C16H15NO2 |
| Molecular Weight | 253.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
(R)-5,5-Diphenyl-4-methyl-2-oxazolidinone (CAS 223906-37-4) is a high-purity analytical reference standard with the molecular formula C16H15NO2 and a molecular weight of 253.30 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, (R)-5,5-Diphenyl-4-methyl-2-oxazolidinone is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.30 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C16H15NO2 |
| Molecular Weight | 253.30 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.) | 2020 |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- (E)-N-(2-hydroxy-4-styrylphenyl)acetamide (CAS 23784-26-1)
- (S)-4-Phenyl-3-(p-tolyl)oxazolidin-2-one (CAS 572923-05-8)
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