(R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-difluorophenyl)acetic acid CAS 1260592-24-2
| CAS No. | 1260592-24-2 |
| Molecular Formula | C23H17F2NO4 |
| Molecular Weight | 409.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-difluorophenyl)acetic acid (CAS 1260592-24-2), a certified reference material (molecular formula C23H17F2NO4, MW 409.38 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-difluorophenyl)acetic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 409.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C23H17F2NO4 |
| Molecular Weight | 409.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1990 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-difluorophenyl)acetic acid (CAS 1260590-10-0)
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(2,3-difluorophenyl)acetic acid (CAS 1260593-02-9)
- Upadacitinib Impurity 94 (CAS CATO-C4X-240594)
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(2,4-difluorophenyl)acetic acid (CAS 1260605-49-9)
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Why CATO?
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