(5-Bromo-2-methoxyphenyl)(cyclopropyl)methanone CAS 69639-81-2
| CAS No. | 69639-81-2 |
| Molecular Formula | C11H11BrO2 |
| Molecular Weight | 255.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 255.11 g/mol gives (5-Bromo-2-methoxyphenyl)(cyclopropyl)methanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(5-Bromo-2-methoxyphenyl)(cyclopropyl)methanone (CAS 69639-81-2) is a high-purity analytical reference standard with the molecular formula C11H11BrO2 and a molecular weight of 255.11 g/mol.
The molecular framework of (5-Bromo-2-methoxyphenyl)(cyclopropyl)methanone (C11H11BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H11BrO2 |
| Molecular Weight | 255.11 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Br-containing |
Related Bromo Standards
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- 3-Bromo-N-propylimidazo[1,2-b]pyridazin-6-amine (CAS 1034621-79-8)
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