2,3',4',5-Tetrabromodiphenyl ether CAS 446254-39-3
| CAS No. | 446254-39-3 |
| Molecular Formula | C12H6Br4O |
| Molecular Weight | 485.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,3',4',5-Tetrabromodiphenyl ether (CAS 446254-39-3), molecular formula C12H6Br4O and molecular weight 485.79 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,3',4',5-Tetrabromodiphenyl ether (C12H6Br4O) contains a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 485.79 g/mol, it falls into the moderately-high-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 | C12H6Br4O |
| Molecular Weight | 485.79 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related Tetrabromodiphenyl Standards
- 3,3',5,5'-Tetrabromodiphenyl Ether (CAS 103173-66-6)
- 2,4,4',6-Tetrabromodiphenyl Ether (CAS 189084-63-7)
- 2,2',3,4'-Tetrabromodiphenyl Ether (CAS 446254-18-8)
- 2,2',3,4-Tetrabromodiphenyl ether (CAS 337513-68-5)
- 2,2',3,5'-Tetrabromodiphenyl ether (CAS 446254-20-2)
- 2,2',3,5-Tetrabromodiphenyl ether (CAS 446254-19-9)
- 2,2',3,6'-Tetrabromodiphenyl Ether (CAS 446254-22-4)
- 2,2',4,5'-Tetrabromodiphenyl Ether (CAS 243982-82-3)
Recommended Standards
- 2,3',4,5-Tetrabromodiphenyl Ether (CAS 446254-37-1)
- 2',3,4,5-Tetrabromodiphenyl Ether (CAS 446254-43-9)
- 2,3',4,5'-Tetrabromodiphenyl Ether (CAS 446254-38-2)
- 2,3,4,6-Tetrabromodiphenyl Ether (CAS 446254-33-7)
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