(R)-3-Chloro-1-phenyl-1-[2-methyl-4-[(tert-butoxycarbonyl)oxy]phenoxy] propane CAS 457634-25-2
| CAS No. | 457634-25-2 |
| Molecular Formula | C21H25ClO4 |
| Molecular Weight | 376.87 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 376.87 g/mol gives (R)-3-Chloro-1-phenyl-1-[2-methyl-4-[(tert-butoxycarbonyl)oxy]phenoxy] propane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (R)-3-Chloro-1-phenyl-1-[2-methyl-4-[(tert-butoxycarbonyl)oxy]phenoxy] propane (CAS 457634-25-2), a certified reference material (molecular formula C21H25ClO4, MW 376.87 g/mol) for analytical method development and quality control.
(R)-3-Chloro-1-phenyl-1-[2-methyl-4-[(tert-butoxycarbonyl)oxy]phenoxy] propane (C21H25ClO4) contains a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
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 | C21H25ClO4 |
| Molecular Weight | 376.87 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
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