4-Chloro-N-(thiophen-2-ylmethyl)benzenesulfonamide CAS 321703-44-0
| CAS No. | 321703-44-0 |
| Molecular Formula | C11H10ClNO2S2 |
| Molecular Weight | 287.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Chloro-N-(thiophen-2-ylmethyl)benzenesulfonamide under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 4-Chloro-N-(thiophen-2-ylmethyl)benzenesulfonamide (CAS 321703-44-0), a certified reference material (molecular formula C11H10ClNO2S2, MW 287.79 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 4-Chloro-N-(thiophen-2-ylmethyl)benzenesulfonamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H10ClNO2S2 |
| Molecular Weight | 287.79 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Chloro Standards
- 2-(5-Chloro-1h-indol-3-yl)-N-((1-methyl-1h-pyrrol-2-yl)methyl)ethan-1-amine (CAS 1011397-97-9)
- 4-Chloro-N-(thiophen-3-ylmethyl)benzenesulfonamide (CAS 1060229-77-7)
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Recommended Standards
- 5-((2-(2-Chlorophenoxy)ethyl)thio)-1,3,4-thiadiazol-2-amine (CAS 404376-76-7)
- 5-((Benzylsulfonyl)methyl)-2-chlorothiazole (CAS 866039-47-6)
- 5-(4-Chlorophenyl)-N-cyclopentyl-2-methylpyrimidin-4-amine (CAS 917896-12-9)
- 1'-(2-Chloroacetyl)-[1,4'-bipiperidine]-4'-carboxamide (CAS 516455-85-9)
- 1-(Tert-butyl) 8-ethyl 7-oxo-1-azaspiro[5.5]undecane-1,8-dicarboxylate (CAS 2209841-59-6)
- 2-Formyl-5-hydroxybenzenesulfonic acid (CAS 106086-27-5)
- 1-[(4-bromophenyl)methyl]piperidin-4-amine (CAS 92539-13-4)
- Ethyl 2,2-difluoro-3-hydroxy-3-methylbutanoate (CAS 168558-19-8)
- 4-Chloro-2-fluoro-5-nitrobenzonitrile (CAS 1242269-80-2)
- Tert-butyl 4-isopropylpiperazine-1-carboxylate (CAS 741287-46-7)
- 2,4,5-Trifluoropyridine (CAS 837365-04-5)
- N-Ethyl-2,4-dichlorobenzylamine (CAS 90390-15-1)
- 2-Ethoxy-1-fluoro-3-(trifluoromethyl)benzene (CAS 2379321-93-2)
- GnRH Associated Peptide (GAP) (1-13), human (CAS 100111-07-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com