(αR)-4-Fluoro-α-[(3S)-4-methyl-3-[[(5-methyl-3-isoxazolyl)carbonyl]amino]-2-oxopentyl]-benzenepropanoic Acid CAS 328086-55-1
| CAS No. | 328086-55-1 |
| Molecular Formula | C20H23FN2O5 |
| Molecular Weight | 390.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (αR)-4-Fluoro-α-[(3S)-4-methyl-3-[[(5-methyl-3-isoxazolyl)carbonyl]amino]-2-oxopentyl]-benzenepropanoic Acid.
CATO supplies (αR)-4-Fluoro-α-[(3S)-4-methyl-3-[[(5-methyl-3-isoxazolyl)carbonyl]amino]-2-oxopentyl]-benzenepropanoic Acid (CAS 328086-55-1), a certified reference material (molecular formula C20H23FN2O5, MW 390.41 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H23FN2O5, (αR)-4-Fluoro-α-[(3S)-4-methyl-3-[[(5-methyl-3-isoxazolyl)carbonyl]amino]-2-oxopentyl]-benzenepropanoic 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 390.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C20H23FN2O5 |
| Molecular Weight | 390.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related R Standards
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Recommended Standards
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- 4-Chloro-N'-(pyridin-3-yl)benzimidamide (CAS 144657-95-4)
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