5-(2,3-Difluorophenyl)thiophene-2-carbaldehyde CAS 887987-08-8
| CAS No. | 887987-08-8 |
| Molecular Formula | C11H6F2OS |
| Molecular Weight | 224.23 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.
5-(2,3-Difluorophenyl)thiophene-2-carbaldehyde (CAS 887987-08-8), molecular formula C11H6F2OS and molecular weight 224.23 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C11H6F2OS, 5-(2,3-Difluorophenyl)thiophene-2-carbaldehyde contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 224.23 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 | C11H6F2OS |
| Molecular Weight | 224.23 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Difluorophenyl Standards
- (3,4-Difluorophenyl)(thiophen-3-yl)methanone (CAS 898771-62-5)
- (3,5-Difluorophenyl)(thiophen-3-yl)methanone (CAS 898771-64-7)
- 5-(2,4-Difluorophenyl)thiophene-2-carbaldehyde (CAS 887986-73-4)
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