5-Bromo-3-methoxy-2-(prop-2-yn-1-yloxy)benzaldehyde CAS 1432437-11-0
| CAS No. | 1432437-11-0 |
| Molecular Formula | C11H9BrO3 |
| Molecular Weight | 269.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C11H9BrO3, 5-Bromo-3-methoxy-2-(prop-2-yn-1-yloxy)benzaldehyde contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 269.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
5-Bromo-3-methoxy-2-(prop-2-yn-1-yloxy)benzaldehyde (CAS 1432437-11-0), molecular formula C11H9BrO3 and molecular weight 269.09 g/mol, is a CATO reference standard with documented purity and traceability.
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), 5-Bromo-3-methoxy-2-(prop-2-yn-1-yloxy)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 | C11H9BrO3 |
| Molecular Weight | 269.09 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1991 |
| Halogen Content | Br-containing |
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Recommended Standards
- 3-Bromo-5-methoxy-4-(2-propynyloxy)benzaldehyde (CAS 143230-65-3)
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- Methyl 7-bromo-1-methyl-1H-benzo[d]imidazole-5-carboxylate (CAS 1420800-41-4)
- 7-Bromo-1-ethyl-1,3-benzodiazole-5-carboxylic acid (CAS 1437795-17-9)
- 3H,4H,5H,6H,7H,8H-pyrido[4,3-d]pyrimidin-4-one dihydrochloride (CAS 109229-08-5)
- 2-((4-(4-Bromophenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(3-methoxyphenyl)acetamide (CAS 477330-19-1)
- Ethyl 5-(chlorosulfonyl)pentanoate (CAS 412270-38-3)
- (2-Iodo-6-(piperidin-3-yl)pyridin-4-yl)boronic acid (CAS 2225151-62-0)
- Sildenafil Impurity 308 (CAS CATO-C4X-1128308)
- 3-Methyl-5-(4-(trifluoromethyl)phenyl)isoxazole-4-carbaldehyde (CAS 1208081-38-2)
- 3-(2,5-Dimethylfuran-3-carboxamido)propanoic acid (CAS 953743-48-1)
- 2-(3-Isopropoxyphenyl)oxazolo[4,5-b]pyridine (CAS 60772-57-8)
- 1-Methyl-4-(trifluoromethyl)-1H-imidazole-2-carboxaldehyde (CAS 1368368-93-7)
- Semaglutide (CAS CATO-C4X-2226105)
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