N-Fmoc-2-fluoro-O-methyl- L-Tyrosine CAS 1998646-59-5
| CAS No. | 1998646-59-5 |
| Molecular Formula | C25H22FNO5 |
| Molecular Weight | 435.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 435.44 g/mol gives N-Fmoc-2-fluoro-O-methyl- L-Tyrosine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies N-Fmoc-2-fluoro-O-methyl- L-Tyrosine (CAS 1998646-59-5), a certified reference material (molecular formula C25H22FNO5, MW 435.44 g/mol) for analytical method development and quality control.
The molecular framework of N-Fmoc-2-fluoro-O-methyl- L-Tyrosine (C25H22FNO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C25H22FNO5 |
| Molecular Weight | 435.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Why CATO?
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