(S)-2-Hydroxyethyl 5-oxopyrrolidine-2-carboxylate CAS 7518-82-3
| CAS No. | 7518-82-3 |
| Molecular Formula | C7H11NO4 |
| Molecular Weight | 173.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (S)-2-Hydroxyethyl 5-oxopyrrolidine-2-carboxylate (C7H11NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 173.17 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
(S)-2-Hydroxyethyl 5-oxopyrrolidine-2-carboxylate (CAS 7518-82-3), molecular formula C7H11NO4 and molecular weight 173.17 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C7H11NO4 |
| Molecular Weight | 173.17 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.) | 1959 |
| Nitrogen Atoms | 1 |
Related S Standards
- 43094-95-7 1-(2-Hydroxyethyl)-5-oxopyrrolidine-3-carboxylic acid EINECS 256-085-1 (CAS 43094-95-7)
- 2-(1-hydroxyethyl)-1,3-thiazole-5-carboxylic acid (CAS 1803610-44-7)
- 2-(1-Hydroxyethyl)thiazole-4-carboxylic acid (CAS 88393-79-7)
- 4-((2-Hydroxyethyl)amino)-1,2,5-oxadiazole-3-carboxylic acid (CAS 147194-40-9)
- 2-Hydroxyethyl 4-amino-1,2,5-oxadiazole-3-carboxylate (CAS 302802-22-8)
- 4-(2-Hydroxyethyl)piperazine-1-carboxamide (CAS 116882-73-6)
- 1-Hydroxyethyl 2-(pyrrolidin-2-yl)acetate (CAS 127742-47-6)
- 0809AF 1-(2-Hydroxyethyl)piperidine-3-carboxylic acid 856213-49-5 C8H15NO3 (CAS 856213-49-5)
Recommended Standards
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- (S)-1-(Carboxymethyl)pyrrolidine-2-carboxylic acid (CAS 33012-76-9)
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