3-Bromo-5-ethoxy-4-((4-nitrobenzyl)oxy)benzaldehyde CAS 345981-33-1
| CAS No. | 345981-33-1 |
| Molecular Formula | C16H14BrNO5 |
| Molecular Weight | 380.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 380.19 g/mol gives 3-Bromo-5-ethoxy-4-((4-nitrobenzyl)oxy)benzaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Bromo-5-ethoxy-4-((4-nitrobenzyl)oxy)benzaldehyde (CAS 345981-33-1), molecular formula C16H14BrNO5 and molecular weight 380.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Bromo-5-ethoxy-4-((4-nitrobenzyl)oxy)benzaldehyde (C16H14BrNO5) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-Bromo-5-ethoxy-4-((4-nitrobenzyl)oxy)benzaldehyde 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.
Physical & Chemical Properties
| Molecular Formula | C16H14BrNO5 |
| Molecular Weight | 380.19 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 5-Amino-2-methylbenzamide (CAS 515131-52-9)
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- 2-(Dimethyl-1,3-thiazol-5-yl)ethan-1-amine (CAS 142437-68-1)
- N-Benzoyl-N-(2,3-dimethyl-6-quinoxalinyl)thiourea (CAS 478064-81-2)
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