(S)-5-Oxo-1-((R)-1-phenylethyl)pyrrolidine-3-carboxylic acid CAS 99735-44-1
| CAS No. | 99735-44-1 |
| Molecular Formula | C13H15NO3 |
| Molecular Weight | 233.26 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.
CATO supplies (S)-5-Oxo-1-((R)-1-phenylethyl)pyrrolidine-3-carboxylic acid (CAS 99735-44-1), a certified reference material (molecular formula C13H15NO3, MW 233.26 g/mol) for analytical method development and quality control.
The molecular framework of (S)-5-Oxo-1-((R)-1-phenylethyl)pyrrolidine-3-carboxylic acid (C13H15NO3) is characterized by a nitrogen-containing heterocyclic scaffold, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C13H15NO3 |
| Molecular Weight | 233.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 1 |
Recommended Standards
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- (S)-3-(4-Acetylphenyl)-4-ethyloxazolidin-2-one (CAS 572923-18-3)
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