| CAS No. | 1414349-24-8 |
| Molecular Formula | C20H18F3NO4 |
| Molecular Weight | 393.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (2S,3R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4,4,4-trifluoro-3-methylbutanoic acid is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
(2S,3R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4,4,4-trifluoro-3-methylbutanoic acid (CAS 1414349-24-8), molecular formula C20H18F3NO4 and molecular weight 393.36 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C20H18F3NO4, (2S,3R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4,4,4-trifluoro-3-methylbutanoic acid contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 393.36 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.
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 | C20H18F3NO4 |
| Molecular Weight | 393.36 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |