2-Bromo-1-(2,6-dichlorophenyl)ethanone CAS 81547-72-0
| CAS No. | 81547-72-0 |
| Molecular Formula | C8H5BrCl2O |
| Molecular Weight | 267.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 267.93 g/mol gives 2-Bromo-1-(2,6-dichlorophenyl)ethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-1-(2,6-dichlorophenyl)ethanone (CAS 81547-72-0), molecular formula C8H5BrCl2O and molecular weight 267.93 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Bromo-1-(2,6-dichlorophenyl)ethanone (C8H5BrCl2O) 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 267.93 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C8H5BrCl2O |
| Molecular Weight | 267.93 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.) | 1980 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
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Recommended Standards
- 2,4,6,8-Tetrachloroquinazoline (CAS 54185-42-1)
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- 2,3,6,7-Tetrachloroquinoxaline (CAS 25983-14-6)
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- Ethyl 2-(3-bromophenyl)sulfanylacetate (CAS 141819-40-1)
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- 5,8-Epoxy-all-trans-Retinoic Acid(Mixture of Diastereomers) (CAS 3012-76-8)
- 4-(3-Amino-2-oxopyridin-1(2h)-yl)butanenitrile (CAS 1249938-84-8)
- N,N-Dimethyl-5-bromo-2-methoxybenzenesulfonamide (CAS 871269-16-8)
- 4,4-dimethyl-2-(methylamino)pentanoic acid (CAS 1310079-62-9)
- 4-Bromo-2,6-dimethylphenyl Isocyanate (CAS 77159-76-3)
- N-(3-Chlorobenzyl)piperidin-3-amine hydrochloride (CAS 1261229-92-8)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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