4-[(5-Bromopentyl)oxy]benzaldehyde CAS 143773-71-1
| CAS No. | 143773-71-1 |
| Molecular Formula | C12H15BrO2 |
| Molecular Weight | 271.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-[(5-Bromopentyl)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.
4-[(5-Bromopentyl)oxy]benzaldehyde (CAS 143773-71-1), molecular formula C12H15BrO2 and molecular weight 271.15 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 4-[(5-Bromopentyl)oxy]benzaldehyde is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 271.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C12H15BrO2 |
| Molecular Weight | 271.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1998 |
| Halogen Content | Br-containing |
Related Bromopentyl Standards
- 1-((5-Bromopentyl)oxy)-3-ethylbenzene (CAS 1340143-85-2)
- (5-Bromopentyl)trimethoxysilane (CAS 773893-02-0)
- 4-((5-Bromopentyl)oxy)benzonitrile (CAS 91945-01-6)
- 2-(1-Bromopentyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 130762-58-2)
- 2-(5-Bromopentyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 148562-16-7)
- 1-((5-Bromopentyl)oxy)-3-chlorobenzene (CAS 104605-74-5)
- 1-((5-Bromopentyl)oxy)-4-chlorobenzene (CAS 82258-51-3)
- 1-((5-Bromopentyl)oxy)-4-fluorobenzene (CAS 86717-91-1)
Recommended Standards
- 4-((5-Bromopyridin-3-yl)amino)cyclohexan-1-ol (CAS 1427786-85-3)
- (1-(4-Bromo-2-methoxyphenyl)cyclobutyl)methanol (CAS 1467061-68-2)
- 5-Bromo-N-methyl-N-((tetrahydrofuran-3-yl)methyl)pyridin-2-amine (CAS 1423378-97-5)
- Methyl 2-(4-(bromomethyl)phenyl)-2-methylpropanoate (CAS 147247-29-8)
- 3-Methyl-4-((3-methyl-5-oxo-1-phenyl-1H-pyrazol-4(5H)-ylidene)amino)-1-phenyl-1H-pyrazol-5(4H)-one (CAS 909-59-1)
- 1-((2,4-Dichloro-5-methylphenyl)sulfonyl)-4-(2-hydroxyethyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 861207-41-2)
- Methyl-1-Hexanol (CAS 61949-26-6)
- (S)-1-(3-fluoro-4-methylphenyl)-2-methylpropan-1-amine (CAS 1213020-17-7)
- 3-(2-chloro-6-fluorophenyl)-1-(4-chloro-3-methylphenyl)prop-2-en-1-one (CAS 219140-57-5)
- Ethyl 2-((1-(furan-2-carboxamido)-2-oxo-2-(p-tolyl)ethyl)amino)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 425652-31-9)
- Ketoconazole EP Impurity B (and enantiomer) (CAS CATO-C4X-14722)
- Fmoc-allo-Thr(tBu)-OH (CAS 201481-37-0)
- 3-(Trifluoromethoxy)piperidine (CAS 1274903-50-2)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
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