| CAS No. | 763923-70-2 |
| Molecular Formula | C5H9FN2O2 |
| Molecular Weight | 148.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 148.14 g/mol gives 4-amino-2-(2-fluoroethyl)isoxazolidin-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-amino-2-(2-fluoroethyl)isoxazolidin-3-one (CAS 763923-70-2), a certified reference material (molecular formula C5H9FN2O2, MW 148.14 g/mol) for analytical method development and quality control.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 4-amino-2-(2-fluoroethyl)isoxazolidin-3-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.
| Molecular Formula | C5H9FN2O2 |
| Molecular Weight | 148.14 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 DMSO, DMF, methanol |
| 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.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |