5’-Bromo-2’-chloroacetophenone CAS 105884-19-3
| CAS No. | 105884-19-3 |
| Molecular Formula | C8H6BrClO |
| Molecular Weight | 233.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5’-Bromo-2’-chloroacetophenone (CAS 105884-19-3), molecular formula C8H6BrClO and molecular weight 233.49 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5’-Bromo-2’-chloroacetophenone (C8H6BrClO) contains a hydroxyl group, an ether linkage, chlorine/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 233.49 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.
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.
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 | C8H6BrClO |
| Molecular Weight | 233.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1987 |
| Halogen Content | Cl/Br-containing |
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- 4,7,8-Trichlorocinnoline (CAS 856179-55-0)
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- 6ß-Hydroxy Norgestimate (CAS 108434-19-1)
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- JF669, SE (CAS 2127150-20-1)
- 3-Oxa-1,7,8-triazaspiro[4.4]nonane (CAS 126505-39-3)
- 5-Chloro-3-cyclopropoxypicolinonitrile (CAS 1243381-43-2)
- Tert-butyl 4-(2,2-difluoroethyl)piperazine-1-carboxylate (CAS 1225380-87-9)
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