Fmoc-β-Ala-OPfp CAS 149303-38-8
| CAS No. | 149303-38-8 |
| Molecular Formula | C24H16F5NO4 |
| Molecular Weight | 477.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Fmoc-β-Ala-OPfp (CAS 149303-38-8), molecular formula C24H16F5NO4 and molecular weight 477.38 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Fmoc-β-Ala-OPfp (C24H16F5NO4) 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. 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.
As a certified reference material (CRM), Fmoc-β-Ala-OPfp meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H16F5NO4 |
| Molecular Weight | 477.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1999 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Fmoc Standards
- Fmoc-D-Ala-OPfp (CAS 125043-04-1)
- Fmoc-Sar-OPfp (CAS 159631-29-5)
- Fmoc-Ala-OPfp (CAS 86060-86-8)
- Fmoc-pentafluoro-D-Phe-OH (CAS 198545-85-6)
- Fmoc-pentafluoro-Phe-OH (CAS 205526-32-5)
- Fmoc-N-(2,4,6-trimethoxybenzyl)-glycine (CAS 166881-43-2)
- Fmoc-D-His(Boc)-OH (CAS 159631-28-4)
- Fmoc-His(1-Boc)-OH (CAS 81379-52-4)
Recommended Standards
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- 4-(2,4-Dichlorophenyl)-2-[(4-methoxyphenyl)sulfanyl]-6-(4-methylphenyl)pyridine-3-carbonitrile (CAS 341964-88-3)
- Celecoxib Impurity 47 (CAS CATO-C4X-104347)
- Ethyl 2-((5-(((4-bromophenyl)sulfonamido)methyl)-4-ethyl-4H-1,2,4-triazol-3-yl)thio)propanoate (CAS 338794-58-4)
- 4-Amino-5-(difluoromethyl)-3-nitropicolinoyl chloride (CAS 1805357-62-3)
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- 3-Aminooctan-4-ol (CAS 1001354-72-8)
- 1-Carbamimidoylpiperidine-4-carboxylic Acid (CAS 135322-16-6)
- Thiamine Impurity 26 (CAS 89875-98-9)
- 4-[1-(2-Methoxyethyl)-1H-imidazol-2-yl]piperidine hydrochloride (CAS 1823902-25-5)
- 4-(5,15,20-Tri-p-tolylporphyrin-10-yl)phenyl methacrylate (CAS 97807-12-0)
- 4-(Ethoxymethylene)-2-(furan-2-yl)oxazol-5(4H)-one (CAS 80589-23-7)
- 5-(2-Fluoropyridin-3-yl)-1H-pyrrole-3-carbaldehyde (CAS 928325-26-2)
- His-Cyclic-Semaglutide (CAS CATO-C4X-2226182)
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