(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid CAS 1260608-79-4
| CAS No. | 1260608-79-4 |
| Molecular Formula | C23H18ClNO4 |
| Molecular Weight | 407.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid (CAS 1260608-79-4), a certified reference material (molecular formula C23H18ClNO4, MW 407.85 g/mol) for analytical method development and quality control.
(S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid (C23H18ClNO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C23H18ClNO4 |
| Molecular Weight | 407.85 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.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3-chlorophenyl)acetic acid (CAS 1260590-39-3)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(2-chlorophenyl)acetic acid (CAS 1260608-83-0)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(4-chlorophenyl)acetic acid (CAS 1260590-28-0)
- n-(((9h-Fluoren-9-yl)methoxy)carbonyl)-n-(4-chlorophenyl)glycine (CAS 1343234-66-1)
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