2-(2-Methoxy-4-((4-oxo-2-thioxothiazolidin-5-ylidene)methyl)phenoxy)acetic acid CAS 331862-41-0
| CAS No. | 331862-41-0 |
| Molecular Formula | C13H11NO6S |
| Molecular Weight | 309.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(2-Methoxy-4-((4-oxo-2-thioxothiazolidin-5-ylidene)methyl)phenoxy)acetic acid (CAS 331862-41-0), molecular formula C13H11NO6S and molecular weight 309.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H11NO6S, 2-(2-Methoxy-4-((4-oxo-2-thioxothiazolidin-5-ylidene)methyl)phenoxy)acetic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 309.29 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).
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 | C13H11NO6S |
| Molecular Weight | 309.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
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Recommended Standards
- 2-(1-Methyl-1H-pyrrol-2-yl)-N'-(2-(trifluoromethyl)benzylidene)acetohydrazide (CAS 314070-97-8)
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- 1H-Indol-4-yl 2,4-difluorobenzenesulfonate (CAS 239080-86-5)
- 3-amino-6-(difluoromethyl)-4-(2-furyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 832739-51-2)
- 2-Phenyl-1-(piperidin-3-yl)ethanone hydrate (CAS 1269054-13-8)
- 3-{[4-(Hydroxymethyl)-2-methoxyphenoxy]methyl}benzoic acid (CAS 693815-64-4)
- 5-(2-Chlorophenyl)-N-(3-(trifluoromethyl)phenyl)furan-2-carboxamide (CAS 618400-57-0)
- 2-Methyl-4-(trifluoromethyl)benzo[d]thiazole (CAS 1261598-43-9)
- Methyl 5-(Benzo[d][1,3]dioxol-5-yl)isoxazole-3-carboxylate (CAS 668971-48-0)
- 2-(Hydroxymethyl)-4,5-dimethylphenol (CAS 10496-92-1)
- 2-(4-Bromo-3-methyl-benzenesulfonyl)-ethanol (CAS 1824050-07-8)
- 4-[[2-Chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]methyl]morpholine (CAS 1092564-33-4)
- 2-(4-((6-Chloropyridin-3-yl)methoxy)phenyl)acetic acid (CAS 860784-49-2)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
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