5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole CAS 551930-99-5
| CAS No. | 551930-99-5 |
| Molecular Formula | C18H15Cl2N3O3S |
| Molecular Weight | 424.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole.
5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole (CAS 551930-99-5), molecular formula C18H15Cl2N3O3S and molecular weight 424.30 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H15Cl2N3O3S, 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole contains a steroid core, 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 424.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 5-[1-(2-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(4-chlorophenyl)-1,2,4-oxadiazole 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.
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.) | 1984 |
| 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-(4-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(2-chlorophenyl)-1,2,4-oxadiazole (CAS 478045-80-6)
- 5-[1-(4-Chlorobenzenesulfonyl)pyrrolidin-2-yl]-3-(3-chlorophenyl)-1,2,4-oxadiazole (CAS 478045-78-2)
- 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)
Recommended Standards
- 3-(4-Chlorophenyl)-5-(1-((4-chlorophenyl)sulfonyl)pyrrolidin-2-yl)-1,2,4-oxadiazole (CAS 478045-79-3)
- B-[10-[3-(2-Naphthalenyl)phenyl]-9-anthracenyl]boronic acid (CAS 853945-54-7)
- 2-((4-Amino-5-(2,4-dichlorophenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-methoxyphenyl)acetamide (CAS 575466-20-5)
- BMS-303141 (CAS 943962-47-8)
- 1-(2-Methoxy-5-methylphenyl)-N-methylmethanamine hydrochloride (CAS 1052550-44-3)
- 2-(1,4-Dioxan-2-yl)ethan-1-amine (CAS 933749-31-6)
- 5-Hydroxy-3,3,6-trimethyl-2,3-dihydro-1H-inden-1-one (CAS 478010-70-7)
- 3-Methyl-2-(1-methyl-1h-pyrazol-4-yl)butanoic acid (CAS 1248324-67-5)
- Methyl cedrylether (CAS 19377-95-8)
- Lemborexant Impurity 73 (CAS CATO-C4X-304273)
- 4-Bromo-N-cyclopentyl-3-fluorobenzenesulfonamide (CAS 1704096-16-1)
- 3-Butyl-4,5-dihydroisobenzofuran-1(3H)-one (CAS 166733-97-7)
- 3a-(Difluoromethyl)-3,3a-dihydrobenzo[d]pyrrolo[2,1-b]thiazol-1(2H)-one (CAS 1191927-89-5)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
Why CATO?
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