| CAS No. | 206755-99-9 |
| Molecular Formula | C4H4F3NO3 |
| Molecular Weight | 171.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 5-Hydroxy-5-(trifluoromethyl)isoxazolidin-3-one 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.
5-Hydroxy-5-(trifluoromethyl)isoxazolidin-3-one (CAS 206755-99-9), molecular formula C4H4F3NO3 and molecular weight 171.07 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C4H4F3NO3, 5-Hydroxy-5-(trifluoromethyl)isoxazolidin-3-one contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 171.07 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.
| Molecular Formula | C4H4F3NO3 |
| Molecular Weight | 171.07 g/mol |
| 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 methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |