2,2',4,5,5'-Pentabromodiphenyl Ether CAS 446254-65-5
| CAS No. | 446254-65-5 |
| Molecular Formula | C12H5Br5O |
| Molecular Weight | 564.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,2',4,5,5'-Pentabromodiphenyl Ether (CAS 446254-65-5) is a high-purity analytical reference standard with the molecular formula C12H5Br5O and a molecular weight of 564.69 g/mol.
Owing to a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2,2',4,5,5'-Pentabromodiphenyl Ether is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 564.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C12H5Br5O |
| Molecular Weight | 564.69 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 Pentabromodiphenyl Standards
- 2,2',3,3',5-Pentabromodiphenyl ether (CAS 446254-51-9)
- 2,2',3,4,5'-Pentabromodiphenyl Ether (CAS 446254-54-2)
- 2,2',3,4,5-Pentabromodiphenyl Ether (CAS 446254-53-1)
- 2,2',3,4',5-Pentabromodiphenyl ether (CAS 446254-57-5)
- 2,2',3',4,5-Pentabromodiphenyl Ether (CAS 446254-64-4)
- 2,2',3,4,6-Pentabromodiphenyl Ether (CAS 446254-55-3)
- 2,2',3',4,6-Pentabromodiphenyl ether (CAS 38463-82-0)
- 2,2',3,5,5'-Pentabromodiphenyl ether (CAS 446254-59-7)
Recommended Standards
- 2,2',3,5,6'-Pentabromodiphenyl ether (CAS 446254-61-1)
- 2,2',4,5,6'-Pentabromodiphenyl Ether (CAS 446254-66-6)
- 2,2',4,5',6-Pentabromodiphenyl Ether (CAS 446254-67-7)
- 2,2',4,6,6'-Pentabromodiphenyl Ether (CAS 446254-68-8)
- 2-Bromo-3-methoxybenzyl alcohol (CAS 199436-55-0)
- N-benzyl-2-(methylthio)pyrimidin-4-amine (CAS 91719-61-8)
- 1-(6-(1H-Imidazol-1-yl)pyridin-3-yl)-3-(3-phenylpropyl)urea (CAS 1421500-39-1)
- ({1-[2-(4-Chlorophenyl)ethyl]piperidin-4-yl}-methyl)methylamine dihydrochloride (CAS 1185069-69-5)
- (2,2,3,3,5,5,6,6-²H₈)piperidin-4-one (CAS 2256742-39-7)
- 1-(2-Fluoroethyl)-1H-pyrazole-5-carboxylic acid (CAS 1198437-45-4)
- 5'-Fluoro-2'-methoxy-[1,1'-biphenyl]-4-thiol (CAS 1443305-90-5)
- 5,12-Dihydroquinoxalino[2,3-b]phenazine-2,3,9-trisulfonic Acid Trisodium Salt (Technical grade) DISCONTINUED (CAS 55262-30-1)
- (5-(Piperidin-1-yl)benzofuran-2-yl)boronic acid (CAS 939050-72-3)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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