Fmoc-(R)-3-amino-4-(4-fluorophenyl)-butyric acid, CAS 331763-70-3
| CAS No. | 331763-70-3 |
| Molecular Formula | C25H22FNO4 |
| Molecular Weight | 419.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 419.44 g/mol gives Fmoc-(R)-3-amino-4-(4-fluorophenyl)-butyric acid, distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Fmoc-(R)-3-amino-4-(4-fluorophenyl)-butyric acid, (CAS 331763-70-3) is a high-purity analytical reference standard with the molecular formula C25H22FNO4 and a molecular weight of 419.44 g/mol.
Fmoc-(R)-3-amino-4-(4-fluorophenyl)-butyric acid, (C25H22FNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Fmoc-(R)-3-amino-4-(4-fluorophenyl)-butyric acid, under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H22FNO4 |
| Molecular Weight | 419.44 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.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-L-2-Methyl-4-fluorophe (CAS 1217700-70-3)
- Fmoc-D-2-Methyl-4-fluorophe (CAS 1217744-26-7)
- Fmoc-2-fluoro-L-homophenylalanine (CAS 1260587-53-8)
- N-Fmoc-L-HomoPhe(4-F)-OH (CAS 1260608-85-2)
- Fmoc-α-methyl-D-2-Fluorophe (CAS 1315449-93-4)
- Fmoc-α-methyl-L-3-Fluorophe (CAS 1410792-22-1)
- Fmoc-4-fluoro-N-methyl-L-phenylalanine (CAS 1979176-87-8)
- (S)-3-(Fmoc-amino)-4-(2-fluorophenyl)butanoic Acid (CAS 270596-49-1)
Recommended Standards
- Fmoc-(r)-3-amino-4-(3-fluorophenyl)-butyric acid. (CAS 331763-67-8)
- Fmoc-N-Me-Phe(2-F)-OH (CAS 2109724-64-1)
- FMOC-(R)-3-AMINO-4-(2-FLUORO-PHENYL)-BUTYRIC ACID (CAS 331763-63-4)
- N-(4-(benzo[d][1,3]dioxol-5-ylmethyl)piperazine-1-carbonothioyl)-2,6-difluorobenzamide (CAS 497060-90-9)
- N1-(2-Methoxyethyl)-N2-(3-phenylpropyl)oxalamide (CAS 1207007-61-1)
- Fipronil-Sulfone (CAS 120068-36-2)
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- Methyl 5-(Methylsulfonyl)nicotinate (CAS 1186663-66-0)
- N-(4-(3,4-Dimethoxyphenyl)thiazol-2-yl)-3-nitrobenzamide (CAS 313404-52-3)
- 5-Chloro-3-phenyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-amine (CAS 91322-19-9)
- 4-[3-(2-Thienyl)acryloyl]phenyl methanesulfonate (CAS 298218-21-0)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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