4,4'-Oxybis(benzoyl Chloride) CAS 7158-32-9
| CAS No. | 7158-32-9 |
| Molecular Formula | C14H8Cl2O3 |
| Molecular Weight | 295.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4'-Oxybis(benzoyl Chloride) 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.
CATO supplies 4,4'-Oxybis(benzoyl Chloride) (CAS 7158-32-9), a certified reference material (molecular formula C14H8Cl2O3, MW 295.12 g/mol) for analytical method development and quality control.
4,4'-Oxybis(benzoyl Chloride) (C14H8Cl2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, a polycyclic aromatic system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C14H8Cl2O3 |
| Molecular Weight | 295.12 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, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
Related Oxybis Standards
- 6,6′-Oxybis(2,4-dimethoxy-1,3,5-triazine) (CAS 63910-63-4)
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- 4,4'-Oxybis(2-nitroaniline) (CAS 3273-78-7)
- 1,1'-(Oxybis(4,1-phenylene))bis(1H-pyrrole) (CAS 258354-46-0)
- 4,4'-((Oxybis(ethane-2,1-diyl))bis(oxy))dianiline (CAS 6954-41-2)
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- Oxybis(ethane-2,1-diyl) dihexanoate (CAS 41710-01-4)
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Recommended Standards
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- [5-Chloro-2-(propylsulfonyl)phenyl]amine (CAS 728029-60-5)
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- 6-Bromo-5-methyl-2H-indazole (CAS 1337530-20-7)
- N-ethyl-3,5-dimethylaniline hydrochloride (CAS 1193387-15-3)
- 6'-Bromospiro[cyclopropane-1,3'-isochromane]-8'-carbaldehyde (CAS 2828459-32-9)
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- Semaglutide impurity 210 (CAS CATO-C4X-2226210)
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