2-Bromo-4-ethylbenzaldehyde CAS 1289148-61-3
| CAS No. | 1289148-61-3 |
| Molecular Formula | C9H9BrO |
| Molecular Weight | 213.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-4-ethylbenzaldehyde (C9H9BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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).
CATO supplies 2-Bromo-4-ethylbenzaldehyde (CAS 1289148-61-3), a certified reference material (molecular formula C9H9BrO, MW 213.07 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 2-Bromo-4-ethylbenzaldehyde 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 | C9H9BrO |
| Molecular Weight | 213.07 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
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Recommended Standards
- 3-Bromo-N-cyclopropylpyridin-2-amine (CAS 1289021-00-6)
- 4-Bromo-2-methoxy-1-vinylbenzene (CAS 1289626-21-6)
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- 1-(2,3-Dimethoxyphenyl)ethanamine (CAS 122670-44-4)
- 3,5-Di-tert-butyl-4-hydroxybenzenesulfonic acid (CAS 25679-39-4)
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- 4-Cyclopropoxy-2-methoxy-3-(methylthio)pyridine (CAS 1243389-27-6)
- 4-Bromo-2-(dimethylamino)pyridine (CAS 946000-27-7)
- 1-(1,3-Dimethyl-1H-pyrazol-5-yl)-N-((1-(2-fluoroethyl)-1H-pyrazol-4-yl)methyl)methanamine hydrochloride (CAS 1856070-48-8)
- 3-O-Acetyl 5,14-Androstadiene-3-ß,17-ß-diol (CAS 61252-30-0)
- 2-(OXetan-3-yloxy)pyrimidin-5-ol (CAS 1421933-35-8)
- (1-(1-Aminoethyl)cyclobutyl)methanol (CAS 1859761-35-5)
- Semaglutide impurity 107 (CAS CATO-C4X-2226107)
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