(R)-3-((tert-Butoxycarbonyl)amino)-3-(4-fluorophenyl)propanoic acid CAS 479064-94-3
| CAS No. | 479064-94-3 |
| Molecular Formula | C14H18FNO4 |
| Molecular Weight | 283.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 283.30 g/mol gives (R)-3-((tert-Butoxycarbonyl)amino)-3-(4-fluorophenyl)propanoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(R)-3-((tert-Butoxycarbonyl)amino)-3-(4-fluorophenyl)propanoic acid (CAS 479064-94-3), molecular formula C14H18FNO4 and molecular weight 283.30 g/mol, is a CATO reference standard with documented purity and traceability.
(R)-3-((tert-Butoxycarbonyl)amino)-3-(4-fluorophenyl)propanoic acid (C14H18FNO4) 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, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C14H18FNO4 |
| Molecular Weight | 283.30 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-3-((Tert-butoxycarbonyl)amino)-3-(2-fluorophenyl)propanoic acid (CAS 500789-03-7)
- (R)-3-(Boc-amino)-3-(3-fluorophenyl)propionic Acid (CAS 500789-04-8)
- (4-Cyano-3-fluorophenyl) 4-propylbenzoate (CAS 86776-51-4)
- (S)-(S)-2-(((Benzyloxy)carbonyl)amino)-4-methylpentanoic hypofluorous anhydride (CAS 2171559-41-2)
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