3-Bromo-4-(2-propynyloxy)benzaldehyde CAS 428487-30-3
| CAS No. | 428487-30-3 |
| Molecular Formula | C10H7BrO2 |
| Molecular Weight | 239.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Bromo-4-(2-propynyloxy)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.
3-Bromo-4-(2-propynyloxy)benzaldehyde (CAS 428487-30-3) is a high-purity analytical reference standard with the molecular formula C10H7BrO2 and a molecular weight of 239.07 g/mol.
3-Bromo-4-(2-propynyloxy)benzaldehyde (C10H7BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H7BrO2 |
| Molecular Weight | 239.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
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Recommended Standards
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- (11-Bromoundecyl)triethoxysilane (CAS 200138-14-3)
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- (2-((2-Methoxyethyl)(methyl)amino)pyridin-4-yl)boronic acid (CAS 1610521-40-8)
- 7-Fluoro-2,3-dimethylquinoxaline-5-carboxylic acid (CAS 1193388-35-0)
- 6-Oxopiperidine-3-carbaldehyde (CAS 2736041-18-0)
- 1-(5-Chloro-2-methoxybenzyl)cyclopropane-1-carboxylic acid (CAS 1268147-95-0)
- (2S,4S)-1-((Benzyloxy)carbonyl)-4-fluoropiperidine-2-carboxylic acid (CAS 1260595-29-6)
- 4-chloro-2,5,7-trimethylpyrrolo[2,1-f][1,2,4]triazine (CAS 1555843-89-4)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
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