4-[(3,5-Dimethyl-4-isoxazolyl)methoxy]-2,6-difluorobenzenemethanol CAS 438049-85-5
| CAS No. | 438049-85-5 |
| Molecular Formula | C13H11F2NO3 |
| Molecular Weight | 267.23 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.
4-[(3,5-Dimethyl-4-isoxazolyl)methoxy]-2,6-difluorobenzenemethanol (CAS 438049-85-5), molecular formula C13H11F2NO3 and molecular weight 267.23 g/mol, is a CATO reference standard with documented purity and traceability.
4-[(3,5-Dimethyl-4-isoxazolyl)methoxy]-2,6-difluorobenzenemethanol (C13H11F2NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 4-[(3,5-Dimethyl-4-isoxazolyl)methoxy]-2,6-difluorobenzenemethanol 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 | C13H11F2NO3 |
| Molecular Weight | 267.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; 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 |
Related Dimethyl Standards
- Dimethyl 2-methyl-2-(4-nitrophenyl)malonate (CAS 131675-32-6)
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Recommended Standards
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