5-Oxo-1-(1,3,4-thiadiazol-2-yl)pyrrolidine-3-carboxylic acid CAS 944643-58-7
| CAS No. | 944643-58-7 |
| Molecular Formula | C7H7N3O3S |
| Molecular Weight | 213.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 213.21 g/mol gives 5-Oxo-1-(1,3,4-thiadiazol-2-yl)pyrrolidine-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Oxo-1-(1,3,4-thiadiazol-2-yl)pyrrolidine-3-carboxylic acid (CAS 944643-58-7), molecular formula C7H7N3O3S and molecular weight 213.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H7N3O3S, 5-Oxo-1-(1,3,4-thiadiazol-2-yl)pyrrolidine-3-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H7N3O3S |
| Molecular Weight | 213.21 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Oxo Standards
- 4-((5-Methyl-1,3,4-thiadiazol-2-yl)amino)-4-oxobut-2-enoic acid (CAS 92340-62-0)
- N-(1,3,4-Thiadiazol-2-yl)-1,2,3-thiadiazole-4-carboxamide (CAS 478261-71-1)
- 1-(1,3,4-Thiadiazol-2-yl)piperidine-4-carboxylic acid (CAS 1408451-83-1)
- 2-(((1,2,3-Thiadiazol-4-yl)methyl)amino)cyclohexan-1-ol (CAS 1249308-10-8)
- 1-(3-ethyl-1,2,4-thiadiazol-5-yl)-1,4-diazepane (CAS 1375174-46-1)
- 1-(3-Propyl-1,2,4-thiadiazol-5-yl)piperazine (CAS 1486795-61-2)
- n-(1,3,4-Thiadiazol-2-yl)piperidine-3-carboxamide (CAS 1019324-93-6)
- N-(1,3,4-thiadiazol-2-yl)piperidine-4-carboxamide (CAS 1019385-44-4)
Recommended Standards
- 5-Methoxybenzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 29083-17-8)
- 6-(4-Fluorophenyl)-4H-pyrrolo[2,3-b]pyrazine (CAS 348637-66-1)
- 5-Fluoro-2-(pyridin-2-yl)-1H-benzo[d]imidazole (CAS 875468-81-8)
- 6-Methanesulfonyl-1h-1,2,3-benzotriazol-1-ol (CAS 731003-65-9)
- (R)-N1,N1-Dimethyl-1-phenylethane-1,2-diamine (CAS 847696-17-7)
- 1-(([1,1'-Biphenyl]-4-ylmethoxy)methyl)-1H-benzo[d][1,2,3]triazole (CAS 299159-59-4)
- Levocarnitine - Impuriy B (CAS 306279-95-8)
- (E)-2-((3-nitropyridin-2-yl)thio)-4-styrylpyrimidine (CAS 338420-95-4)
- Dimethyl (2,5-dihydroxyphenyl)phosphonate (CAS 88011-34-1)
- 3-(Dodecyloxy)propan-1-amine (CAS 7617-74-5)
- 2-Bromo-4-chloromethyl-5-(trifluoromethyl)pyridine (CAS 1227590-77-3)
- 2-chloro-4-methoxy-6-phenyl-1,3,5-triazine (CAS 36335-89-4)
- (2R,3R,4R,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-(2-methoxyethoxy)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 163878-63-5)
- Semaglutide impurity 65 (CAS CATO-C4X-222665)
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