2-Benzoyl-4-chlorobenzenesulfonyl chloride CAS 19562-55-1
| CAS No. | 19562-55-1 |
| Molecular Formula | C13H8Cl2O3S |
| Molecular Weight | 315.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Benzoyl-4-chlorobenzenesulfonyl chloride (CAS 19562-55-1), a certified reference material (molecular formula C13H8Cl2O3S, MW 315.17 g/mol) for analytical method development and quality control.
2-Benzoyl-4-chlorobenzenesulfonyl chloride (C13H8Cl2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring 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 high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H8Cl2O3S |
| Molecular Weight | 315.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- (R)-2-((Tetrahydrofuran-3-yl)oxy)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1893403-93-4)
- (2-(((9H-Fluoren-9-yl)amino)methyl)phenyl)boronic acid (CAS 921198-22-3)
- (2-Fluoro-4-methyl-5-((4-methylpiperidin-1-yl)sulfonyl)phenyl)boronic acid (CAS 1704121-38-9)
- (3-(((9H-Fluoren-9-yl)amino)methyl)phenyl)boronic acid (CAS 921198-23-4)
- 4-Bromo-3-(difluoromethyl)-5-methoxypicolinoyl chloride (CAS 1806873-00-6)
- Methyl 3-amino-3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)propanoate (CAS 618109-34-5)
- 82499-02-3 2-Chloro-6(methylamino)purine DTXSID00404544 (CAS 82499-02-3)
- 1-Ethyl-6-fluoro-8-methyl-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 1315345-29-9)
- 9-(Iodomethyl)anthracene (CAS 260365-89-7)
- methyl 7-(benzenesulfonyl)-2,4-dichloro-7H-pyrrolo[2,3-d]pyrimidine-6-carboxylate (CAS 1638767-60-8)
- 1-[(4-methoxyphenyl)methyl]-3,5-dimethyl-1H-pyrazole-4-carbaldehyde (CAS 163814-56-0)
- Methyl 5-methoxy-1,2,3,4-tetrahydroisoquinoline-4-carboxylate (CAS 2091745-08-1)
- (1E)-1-chloro-4-methylpent-1-en-3-one (CAS 58953-14-3)
- Semaglutide Impurity 10 (CAS CATO-C4X-222610)
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