4-Chloro-N-(3,5-dichlorophenyl)benzenesulfonamide CAS 329937-55-5
| CAS No. | 329937-55-5 |
| Molecular Formula | C12H8Cl3NO2S |
| Molecular Weight | 336.62 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.
CATO supplies 4-Chloro-N-(3,5-dichlorophenyl)benzenesulfonamide (CAS 329937-55-5), a certified reference material (molecular formula C12H8Cl3NO2S, MW 336.62 g/mol) for analytical method development and quality control.
Based on its molecular formula C12H8Cl3NO2S, 4-Chloro-N-(3,5-dichlorophenyl)benzenesulfonamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 336.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H8Cl3NO2S |
| Molecular Weight | 336.62 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- Methyl 1-(3-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclopropane-1-carboxylate (CAS 1259022-88-2)
- 1-(2-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-3-cyclopropylurea (CAS 2246785-58-8)
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- 8-Chloro-2-(3-chlorophenyl)quinoline-4-carbonyl chloride (CAS 1160263-57-9)
- 8-Chloro-2-(2-chlorophenyl)quinoline-4-carbonyl chloride (CAS 1160263-59-1)
- 8-Chloro-2-(4-chlorophenyl)quinoline-4-carbonyl chloride (CAS 124930-94-5)
- 1-(3-Chloro-4-fluorobenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1604036-60-3)
Recommended Standards
- 3,4-Dichloro-N-(4-chlorophenyl)benzenesulfonamide (CAS 640-59-5)
- N-(2,4,6-trichlorophenyl)benzenesulfonamide (CAS 351027-75-3)
- 2,5-Dichloro-N-(4-chlorophenyl)benzenesulfonamide (CAS 91395-45-8)
- 3-Methoxy-5-nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride (CAS 1804790-31-5)
- (5-Ethylquinuclidin-2-yl)(quinolin-4-yl)methanamine (CAS 1355995-89-9)
- Methyl 4-(chlorosulfonyl)-1-naphthoate (CAS 2126179-09-5)
- 1-(2-Fluorophenyl)-1,2,3,4-tetrahydropyrrolo[1,2-a]pyrazine (CAS 897615-91-7)
- 1-(tert-Butoxy)-2-cyclopropoxy-3-nitrobenzene (CAS 1243394-62-8)
- 4-Chlorophenyl sulfofluoridate (CAS 1535-33-7)
- 1,6-Dibromohex-3-ene (CAS 75225-40-0)
- D-fructose-4,5-d (CAS 478518-48-8)
- 2-(4,4-Difluoropiperidin-1-yl)-5-(trifluoromethyl)pyridine 1713162-79-8 (CAS 1713162-79-8)
- (1S,3R)-3-((3E,7E)-9-(4-Hydroxy-6-methyl-2-oxo-2H-pyran-3-yl)-3,7-dimethylnona-3,7-dien-1-yl)-2,2-dimethyl-4-methylenecyclohexyl acetate (CAS 1452396-10-9)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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