(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid CAS 507472-15-3
| CAS No. | 507472-15-3 |
| Molecular Formula | C24H20ClNO4 |
| Molecular Weight | 421.87 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 (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid.
(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid (CAS 507472-15-3), molecular formula C24H20ClNO4 and molecular weight 421.87 g/mol, is a CATO reference standard with documented purity and traceability.
(S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid (C24H20ClNO4) 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. 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.
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 | C24H20ClNO4 |
| Molecular Weight | 421.87 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.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Recommended Standards
- (r)-3-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid (CAS 511272-52-9)
- (S)-3-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(3-chlorophenyl)propanoic acid (CAS 507472-16-4)
- 3-(4-Chlorophenyl)-3-{[(9H-fluoren-9-ylmethoxy)-carbonyl]amino}propanoic acid (CAS 194471-87-9)
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid (CAS 678991-52-1)
- Ethyl 2-(4-chloro-3-methoxyphenyl)-2-oxoacetate (CAS 1256481-51-2)
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