4-Chloro-N-(thiophen-2-ylmethyl)benzenesulfonamide CAS 321703-44-0
Purity 97%+In StockPharmaceutical Standards
| 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
4-Chloro-N-(thiophen-2-ylmethyl)benzenesulfonamide (CAS 321703-44-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H10ClNO2S2. Molecular weight: 287.79 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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 |
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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-(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)
- 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)
- GnRH Associated Peptide (GAP) (1-13), human (CAS 100111-07-7)
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