2-(4-Oxo-2-thioxo-3-thiazolidinyl)butanedioic acid CAS 31316-80-0
| CAS No. | 31316-80-0 |
| Molecular Formula | C7H7NO5S2 |
| Molecular Weight | 249.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Oxo-2-thioxo-3-thiazolidinyl)butanedioic acid (C7H7NO5S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-(4-Oxo-2-thioxo-3-thiazolidinyl)butanedioic acid (CAS 31316-80-0), molecular formula C7H7NO5S2 and molecular weight 249.26 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(4-Oxo-2-thioxo-3-thiazolidinyl)butanedioic 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 | C7H7NO5S2 |
| Molecular Weight | 249.26 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Oxo Standards
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Recommended Standards
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- 2-Amino-4-bromo-6-(trifluoromethoxy)phenol (CAS 1807226-78-3)
- 1,2,3,4-Tetrahydroisoquinolin-7-ylmethanol (CAS 220247-51-8)
- 2-(3-(Thiophen-2-yl)-1H-pyrazol-1-yl)ethan-1-amine (CAS 1020706-50-6)
- (R)-2-hydroxy-2-((3aR,5R,6R,6aR)-6-hydroxy-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)ethyl 4-methylbenzenesulfonate (CAS 24384-93-8)
- Axitinib Impurity 48 (CAS 1959572-98-5)
- N-Methylpent-4-enamide (CAS 52565-61-4)
- N-(5-Oxo-1-(2,2,2-trifluoroethyl)-4,5-dihydro-1H-pyrazol-3-yl)methacrylamide (CAS 29572-45-0)
- 4-Chlorobenzo[d]oxazole-2-sulfonyl chloride (CAS 1803857-45-5)
- 3-(3-(Methoxymethoxy)phenyl)propanal (CAS 53214-75-8)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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