5,7-Difluoro-2,3-dihydrobenzofuran CAS 175203-20-0
| CAS No. | 175203-20-0 |
| Molecular Formula | C8H6F2O |
| Molecular Weight | 156.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 5,7-Difluoro-2,3-dihydrobenzofuran under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
5,7-Difluoro-2,3-dihydrobenzofuran (CAS 175203-20-0), molecular formula C8H6F2O and molecular weight 156.13 g/mol, is a CATO reference standard with documented purity and traceability.
5,7-Difluoro-2,3-dihydrobenzofuran (C8H6F2O) contains a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C8H6F2O |
| Molecular Weight | 156.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 3,4-Difluoro-5-methylbenzaldehyde (CAS 1017778-64-1)
- 3,5-Difluoro-2-methylbenzaldehyde (CAS 1017778-68-5)
- 2,6-Difluoro-4-methylbenzaldehyde (CAS 1201597-22-9)
- 2,2-Difluoro-2-phenylacetaldehyde (CAS 129660-35-1)
- 2,4-Difluoro-6-methylbenzaldehyde (CAS 1378473-63-2)
- 3,6-Difluoro-2-methylbenzaldehyde (CAS 1378525-21-3)
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Recommended Standards
- (E)-[(2,5-Difluorophenyl)methylidene]hydrazine (CAS 1820748-99-9)
- 2-Fluoro-1-(2-fluorophenyl)ethanone (CAS 1402412-84-3)
- 2,3-Difluoroacetophenone (CAS 18355-80-1)
- 1-(Difluoromethyl)-4-ethynyl-5-methyl-1H-pyrazole (CAS 1855889-94-9)
- 3-Cyclohexyl-2-mercapto-3H-quinazolin-4-one (CAS 13906-06-4)
- 6-Methyl-3-(piperidin-4-yl)-1H-indole hydrochloride (CAS 1187927-14-5)
- 1-(tert-Butyl)-4-cyclopropoxy-2-nitrobenzene (CAS 1243410-01-6)
- 5-((3-Chloro-5-(trifluoromethyl)pyridin-2-yl)thio)-1,3,4-thiadiazole-2(3H)-thione (CAS 477846-12-1)
- 2-(4-(Methylthio)benzo[d]oxazol-2-yl)acetic acid (CAS 1804450-61-0)
- Magnesium Nonafluorobutane-1-sulphonate (CAS 507453-86-3)
- N-(4-((4-Fluorobenzamido)methyl)phenyl)-N-methyltetrahydro-2H-pyran-4-carboxamide (CAS 1956323-16-2)
- 2-(2,3-Dichlorophenyl)pyrimidine-5-carboxaldehyde (CAS 1361763-67-8)
- 6-Azidobenzo[d]thiazole (CAS 76006-85-4)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com