2-Bromo-3,5-dimethoxybenzaldehyde CAS 85565-93-1
| CAS No. | 85565-93-1 |
| Molecular Formula | C9H9BrO3 |
| Molecular Weight | 245.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Bromo-3,5-dimethoxybenzaldehyde (C9H9BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 245.07 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Bromo-3,5-dimethoxybenzaldehyde (CAS 85565-93-1) is a high-purity analytical reference standard with the molecular formula C9H9BrO3 and a molecular weight of 245.07 g/mol.
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 | C9H9BrO3 |
| Molecular Weight | 245.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Br-containing |
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Recommended Standards
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- Folic Acid Hydrate EP Impurity B (CAS 35011-47-3)
- 2-(4-Chlorophenyl)-3-(4-methyl-2-phenyl-1,3-thiazole-5-carbonyl)cyclopropane-1,1-dicarbonitrile (CAS 478064-84-5)
- 2,6-Dimethoxypyrimidine-4-carboxylic acid methyl ester (CAS 55878-45-0)
- 6-Amino-4-methyl-2H-chromen-2-one (CAS 103264-02-4)
- 3-Bromo-6-chloro-1H-pyrrolo[2,3-b]pyridine (CAS 1190321-08-4)
- Influenza PR8 Hemagglutinin Peptide (110-119) (H-6312.0005) (CAS 132031-50-6)
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