(R)-5-Ethylcarboxyl-N-acetyl-2-pyrrolidinone 1315051-65-0 5-Oxo-N-acetyl-D-proline Ethyl Ester CAS 1315051-65-0
| CAS No. | 1315051-65-0 |
| Molecular Formula | C9H13NO4 |
| Molecular Weight | 199.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
(R)-5-Ethylcarboxyl-N-acetyl-2-pyrrolidinone 1315051-65-0 5-Oxo-N-acetyl-D-proline Ethyl Ester (CAS 1315051-65-0), molecular formula C9H13NO4 and molecular weight 199.20 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (R)-5-Ethylcarboxyl-N-acetyl-2-pyrrolidinone 1315051-65-0 5-Oxo-N-acetyl-D-proline Ethyl Ester (C9H13NO4) 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 the protonation state of its nitrogen-containing groups, 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 | C9H13NO4 |
| Molecular Weight | 199.20 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
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