8-Fluoro-3,4-dihydro-2h-1-benzopyran-4-ol CAS 1092938-99-2
| CAS No. | 1092938-99-2 |
| Molecular Formula | C9H9FO2 |
| Molecular Weight | 168.16 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.
8-Fluoro-3,4-dihydro-2h-1-benzopyran-4-ol (CAS 1092938-99-2), molecular formula C9H9FO2 and molecular weight 168.16 g/mol, is a CATO reference standard with documented purity and traceability.
8-Fluoro-3,4-dihydro-2h-1-benzopyran-4-ol (C9H9FO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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).
As a certified reference material (CRM), 8-Fluoro-3,4-dihydro-2h-1-benzopyran-4-ol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C9H9FO2 |
| Molecular Weight | 168.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
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