(2S)-2-methyl-5-oxopyrrolidine-2-carboxylic acid CAS 160867-99-2
| CAS No. | 160867-99-2 |
| Molecular Formula | C6H9NO3 |
| Molecular Weight | 143.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (2S)-2-methyl-5-oxopyrrolidine-2-carboxylic acid (CAS 160867-99-2), a certified reference material (molecular formula C6H9NO3, MW 143.14 g/mol) for analytical method development and quality control.
(2S)-2-methyl-5-oxopyrrolidine-2-carboxylic acid (C6H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
Physical & Chemical Properties
| Molecular Formula | C6H9NO3 |
| Molecular Weight | 143.14 g/mol |
| 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.) | 2002 |
| Nitrogen Atoms | 1 |
Recommended Standards
- [3-(dimethylamino)-1,2,4-oxadiazol-5-yl]methanol (CAS 1602419-10-2)
- (2R)-2-methyl-5-oxopyrrolidine-2-carboxylic acid (CAS 1629052-62-5)
- 2-Amino-1,4,5,6-tetrahydropyrimidine-5-carboxylic acid (CAS 158832-73-6)
- (S)-2-oxopiperidine-3-carboxylic acid (CAS 1644251-80-8)
- 4-(1H-Pyrazol-1-yl)benzoic acid hydrochloride (CAS 1185294-89-6)
- Ethyl 3-(chlorosulfonyl)-4-methylbenzoate (CAS 924871-96-5)
- 5-Methyl-4-(((1-methyl-1H-imidazol-2-yl)thio)methyl)thiophene-2-carbaldehyde (CAS 889972-75-2)
- N-(4-methyl-3,5-dinitrophenyl)acetamide (CAS 7142-91-8)
- [2,2':6',2''-Terpyridine]-4'(1'H)-thione (CAS 871232-96-1)
- 2,3-Dichloro-6-(difluoromethoxy)acetophenone (CAS 1806348-45-7)
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- (2-Fluorophenyl)(phenyl)methanamine (CAS 55095-24-4)
- (Tyr?)-C-Peptide (dog) (CAS 101135-67-5)
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