| CAS No. | 219765-92-1 |
| Molecular Formula | C15H11BrCl2O3 |
| Molecular Weight | 390.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-Bromo-4-[(3,4-dichlorobenzyl)oxy]-5-methoxybenzaldehyde (CAS 219765-92-1) is a high-purity analytical reference standard with the molecular formula C15H11BrCl2O3 and a molecular weight of 390.06 g/mol.
The molecular framework of 3-Bromo-4-[(3,4-dichlorobenzyl)oxy]-5-methoxybenzaldehyde (C15H11BrCl2O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
| Molecular Formula | C15H11BrCl2O3 |
| Molecular Weight | 390.06 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 2019 |
| Halogen Content | Cl/Br-containing |