5-(3-Ethoxy-4-hydroxybenzylidene)thiazolidine-2,4-dione CAS 331003-75-9
| CAS No. | 331003-75-9 |
| Molecular Formula | C12H11NO4S |
| Molecular Weight | 265.29 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.
5-(3-Ethoxy-4-hydroxybenzylidene)thiazolidine-2,4-dione (CAS 331003-75-9), molecular formula C12H11NO4S and molecular weight 265.29 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H11NO4S, 5-(3-Ethoxy-4-hydroxybenzylidene)thiazolidine-2,4-dione 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 265.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H11NO4S |
| Molecular Weight | 265.29 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethoxy Standards
- (Z)-5-(3-Ethoxy-4-hydroxybenzylidene)thiazolidine-2,4-dione (CAS 1055980-74-9)
- 2-(4-Ethoxy-benzoylamino)-3-methyl-butyric acid (CAS 1396962-94-9)
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- (E)-4-ethoxy-4-cyclohexylamino-1,1,1-trifluorobut-3-en-2-one (CAS 869946-57-6)
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Recommended Standards
- 5-((Benzo[d][1,3]dioxol-5-yloxy)methyl)-4-methyl-4H-1,2,4-triazole-3-thiol (CAS 897831-07-1)
- 5-[(2H-1,3-Benzodioxol-5-yl)methyl]-3-methyl-1,3-thiazolidine-2,4-dione (CAS 865658-81-7)
- 4-Methoxy-3-(thiazol-4-ylmethoxy)benzoic acid (CAS 923799-04-6)
- 5-[(3,4-dimethoxyphenyl)methylidene]-1,3-thiazolidine-2,4-dione (CAS 6325-95-7)
- 2-(O-tolyl)pyridin-3-amine (CAS 886508-16-3)
- 1-(4-Chlorophenoxy)cyclohexane-1-carboxylic acid (CAS 17413-88-6)
- 5-Chloro-2,3-dihydro-2-oxo-6-benzoxazolyl β-D-Glucopyranosiduronic Acid (CAS 87620-03-9)
- 2-(2-Propylmorpholino)ethan-1-amine (CAS 1352516-36-9)
- 3-bromo-1-(diphenylmethyl)-4,4-dimethoxypyrrolidin-2-one (CAS 459869-30-8)
- 4-(Difluoromethyl)-3-fluoro-6-iodopicolinaldehyde (CAS 1806875-50-2)
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