(4<I>S</I>,5<I>R</I>)-(-)-4-methyl-5-phenyl-2-oxazolinone CAS 16251-45-9
| CAS No. | 16251-45-9 |
| Molecular Formula | C10H17NO2 |
| Molecular Weight | 183.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of (4<I>S</I>,5<I>R</I>)-(-)-4-methyl-5-phenyl-2-oxazolinone (C10H17NO2) is characterized by an amino-acid-derived structure, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies (4<I>S</I>,5<I>R</I>)-(-)-4-methyl-5-phenyl-2-oxazolinone (CAS 16251-45-9), a certified reference material (molecular formula C10H17NO2, MW 183.25 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (4<I>S</I>,5<I>R</I>)-(-)-4-methyl-5-phenyl-2-oxazolinone meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H17NO2 |
| Molecular Weight | 183.25 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1961 |
| Nitrogen Atoms | 1 |
Recommended Standards
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