4-Bromo-2-((5-bromo-2-methoxyphenyl)(4-bromophenyl )methyl)-1-methoxybenzene CAS 951771-28-1
| CAS No. | 951771-28-1 |
| Molecular Formula | C21H17Br3O2 |
| Molecular Weight | 541.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 541.07 g/mol gives 4-Bromo-2-((5-bromo-2-methoxyphenyl)(4-bromophenyl )methyl)-1-methoxybenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-2-((5-bromo-2-methoxyphenyl)(4-bromophenyl )methyl)-1-methoxybenzene (CAS 951771-28-1), molecular formula C21H17Br3O2 and molecular weight 541.07 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C21H17Br3O2, 4-Bromo-2-((5-bromo-2-methoxyphenyl)(4-bromophenyl )methyl)-1-methoxybenzene contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 541.07 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.
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 | C21H17Br3O2 |
| Molecular Weight | 541.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 2-(6-Chloropyridin-2-yl)ethan-1-ol (CAS 174666-23-0)
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