4-Methylsulfonyl-2,3',4',5-tetrachlorobiphenyl CAS 69797-51-9
| CAS No. | 69797-51-9 |
| Molecular Formula | C13H8Cl4O2S |
| Molecular Weight | 370.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methylsulfonyl-2,3',4',5-tetrachlorobiphenyl (CAS 69797-51-9) is a high-purity analytical reference standard with the molecular formula C13H8Cl4O2S and a molecular weight of 370.08 g/mol.
4-Methylsulfonyl-2,3',4',5-tetrachlorobiphenyl (C13H8Cl4O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 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 | C13H8Cl4O2S |
| Molecular Weight | 370.08 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- 4-Methylsulfonyl-2,3,4',6-tetrachlorobiphenyl (CAS 108736-08-9)
- 3-Methylsulfonyl-2,2',4',5-tetrachlorobiphenyl (CAS 116807-52-4)
- 3-Methylsulfonyl-2,3',4',5-tetrachlorobiphenyl (CAS 116807-53-5)
- 3-Methylsulfonyl-2,2',5,5'-tetrachlorobiphenyl (CAS 60640-54-2)
- 4-Methylsulfonyl-2,2',4',5-tetrachlorobiphenyl (CAS 69797-52-0)
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