2,4,4',5-Tetrachlorodiphenyl Ether CAS 61328-45-8
| CAS No. | 61328-45-8 |
| Molecular Formula | C12H6Cl4O |
| Molecular Weight | 307.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H6Cl4O, 2,4,4',5-Tetrachlorodiphenyl Ether contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 307.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2,4,4',5-Tetrachlorodiphenyl Ether (CAS 61328-45-8), molecular formula C12H6Cl4O and molecular weight 307.99 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 2,4,4',5-Tetrachlorodiphenyl Ether meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H6Cl4O |
| Molecular Weight | 307.99 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1974 |
| Halogen Content | Cl-containing |
Recommended Standards
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- 3,3,4,4-TetraCDE (CAS 56348-72-2)
- 1,3-Difluoro-5-iodo-2-(trifluoromethyl)benzene (CAS 910787-71-2)
- 3-Hydroxy-2',3',4',5'-tetrachlorobiphenyl (CAS 67651-37-0)
- 5-Aminobenzo[d]thiazole-2-carboxylic acid (CAS 353487-33-9)
- 2,5-Bis(methylthio)pyrimidin-4(3H)-one (CAS 6962-95-4)
- 4-(Difluoromethyl)-6-iodo-3-methylpicolinic acid (CAS 1805548-82-6)
- N-(2-bromoethyl)-3,4-difluorobenzenesulfonamide (CAS 942473-82-7)
- Propranolol impurity 45 (CAS CATO-C4X-151945)
- 2-Fluoro-4-methoxybenzaldehyde (CAS 331-64-6)
- 2-Chloro-N-(2-(isopropylsulfonyl)phenyl)pyrimidin-4-amine (CAS 1197956-18-5)
- Ethyl 3-(4-acetamidophenyl)-2-cyanoacrylate (CAS 6629-53-4)
- 6-Fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 117685-48-0)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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