(5E)-5-[4-(Difluoromethoxy)benzylidene]-2-mercapto-1,3-thiazol-4(5H)-one 0655AE 337933-33-2 C11H7F2NO2S2 CAS 337933-33-2
| CAS No. | 337933-33-2 |
| Molecular Formula | C11H7F2NO2S2 |
| Molecular Weight | 287.31 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.
(5E)-5-[4-(Difluoromethoxy)benzylidene]-2-mercapto-1,3-thiazol-4(5H)-one 0655AE 337933-33-2 C11H7F2NO2S2 (CAS 337933-33-2), molecular formula C11H7F2NO2S2 and molecular weight 287.31 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H7F2NO2S2, (5E)-5-[4-(Difluoromethoxy)benzylidene]-2-mercapto-1,3-thiazol-4(5H)-one 0655AE 337933-33-2 C11H7F2NO2S2 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 287.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C11H7F2NO2S2 |
| Molecular Weight | 287.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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Recommended Standards
- tert-Butyl 5,8-dihydro-5,8-epiminonaphtho[2,3-d][1,3]dioxole-10-carboxylate (CAS 929189-19-5)
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- tert-Butyl (4-(5-formylfuran-2-yl)phenyl)carbamate (CAS 886509-59-7)
- 3-(2-Methoxy-phenylcarbamoyl)-bicyclo[2.2.1]hept-5-ene-2-carboxylic acid 3-(2-methoxy-phenylcarbamoyl)-bicyclo[ 61894-11-9 (CAS 61894-11-9)
- 5-Cyclopropoxy-2-methoxybenzoic acid (CAS 1243355-70-5)
- N-Phenyl-2-anthramine (CAS 109871-20-7)
- Ethyl 2-(4-hydroxypiperidin-4-yl)acetate (CAS 167364-28-5)
- 9-Octyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-carbazole (CAS 793681-93-3)
- 6-(2,5-Difluorophenyl)picolinimidamide hydrochloride (CAS 1179362-61-8)
- 1-(3-Methylbenzyl)-1h-imidazol-2-amine (CAS 1184015-94-8)
- 4-(Difluoromethyl)-2,5-difluoro-3-nitropyridine (CAS 1805336-82-6)
- (S)-N-(4-chlorobenzylidene)-2-methylpropane-2-sulfinamide (CAS 851513-47-8)
- 3-Heptene,3,5-dimethyl,(E) (CAS 59643-68-4)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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