| CAS No. | 858751-27-6 |
| Molecular Formula | C21H19BrO5 |
| Molecular Weight | 431.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
As a certified reference material (CRM), 3-(7-((4-Bromobenzyl)oxy)-4,8-dimethyl-2-oxo-2H-chromen-3-yl)propanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
CATO supplies 3-(7-((4-Bromobenzyl)oxy)-4,8-dimethyl-2-oxo-2H-chromen-3-yl)propanoic acid (CAS 858751-27-6), a certified reference material (molecular formula C21H19BrO5, MW 431.28 g/mol) for analytical method development and quality control.
The molecular framework of 3-(7-((4-Bromobenzyl)oxy)-4,8-dimethyl-2-oxo-2H-chromen-3-yl)propanoic acid (C21H19BrO5) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
| Molecular Formula | C21H19BrO5 |
| Molecular Weight | 431.28 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |