4-Bromo-2-ethoxy-1-vinylbenzene CAS 943742-30-1
| CAS No. | 943742-30-1 |
| Molecular Formula | C10H11BrO |
| Molecular Weight | 227.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 227.10 g/mol gives 4-Bromo-2-ethoxy-1-vinylbenzene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-2-ethoxy-1-vinylbenzene (CAS 943742-30-1), molecular formula C10H11BrO and molecular weight 227.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-2-ethoxy-1-vinylbenzene (C10H11BrO) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 227.10 g/mol, it falls into the medium-molecular-weight range. 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 | C10H11BrO |
| Molecular Weight | 227.10 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Bromo Standards
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- 4-Bromo-2-cyclopropyl-1-methoxybenzene (CAS 749929-58-6)
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- 6-Fluoro-4-methoxy-1H-indazol-3-amine (CAS 1240518-42-6)
- {4-[(4-Chlorophenyl)sulfanyl]phenyl}methanol (CAS 676439-98-8)
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