1-Ethyl-5-oxo-3-pyrrolidinecarboxylic acid CAS 52743-73-4
| CAS No. | 52743-73-4 |
| Molecular Formula | C7H11NO3 |
| Molecular Weight | 157.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 1-Ethyl-5-oxo-3-pyrrolidinecarboxylic acid is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 157.17 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.
CATO supplies 1-Ethyl-5-oxo-3-pyrrolidinecarboxylic acid (CAS 52743-73-4), a certified reference material (molecular formula C7H11NO3, MW 157.17 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 1-Ethyl-5-oxo-3-pyrrolidinecarboxylic acid 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 | C7H11NO3 |
| Molecular Weight | 157.17 g/mol |
| Appearance | 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, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 1-Amino-4-oxocyclohexane-1-carboxylic acid (CAS 285996-77-2)
- 1-Ethyl-6-aminouracil (CAS 41862-09-3)
- 1-Acetylpyrrolidine-3-carboxylic acid (CAS 712270-40-1)
- 1-Fluoro-2-(sulfinylamino)benzene (CAS 74653-64-8)
- 3-(2,4-Dimethoxyphenyl)-N-(3-methylphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483994-90-7)
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