5-[1-(4-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(3-chlorophenyl)-1,2,4-oxadiazole CAS 478045-78-2
| CAS No. | 478045-78-2 |
| Molecular Formula | C18H15Cl2N3O3S |
| Molecular Weight | 424.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-[1-(4-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(3-chlorophenyl)-1,2,4-oxadiazole (CAS 478045-78-2), a certified reference material (molecular formula C18H15Cl2N3O3S, MW 424.30 g/mol) for analytical method development and quality control.
5-[1-(4-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(3-chlorophenyl)-1,2,4-oxadiazole (C18H15Cl2N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H15Cl2N3O3S |
| Molecular Weight | 424.30 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Chlorobenzenesulfonyl Standards
- 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(2-chlorophenyl)-1,2,4-oxadiazole (CAS 551931-01-2)
- 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(3-chlorophenyl)-1,2,4-oxadiazole (CAS 551931-00-1)
- 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole (CAS 551930-99-5)
- 5-[1-(4-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(2-chlorophenyl)-1,2,4-oxadiazole (CAS 478045-80-6)
- 1-(4-Chlorobenzenesulfonyl)-N'-[(1E)-(4-fluorophenyl)methylidene]piperidine-4-carbohydrazide (CAS 478030-77-2)
- 4-{3-[(4-chlorobenzenesulfonyl)methyl]-4-nitrobenzoyl}morpholine (CAS 339276-57-2)
- 4-[(4-Chlorobenzenesulfonyl)methyl]-6-[(2-chlorophenyl)methoxy]-2-methylpyrimidine (CAS 338960-44-4)
- 4-[(4-Chlorobenzenesulfonyl)methyl]-6-[(2-chlorophenyl)sulfanyl]-2-methylpyrimidine (CAS 338960-54-6)
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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