N-(2-oxo-2-(pyrrolidin-1-yl)ethyl)-N-phenylbenzenesulfonamide CAS 331727-11-8
| CAS No. | 331727-11-8 |
| Molecular Formula | C18H20N2O3S |
| Molecular Weight | 344.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
N-(2-oxo-2-(pyrrolidin-1-yl)ethyl)-N-phenylbenzenesulfonamide (CAS 331727-11-8), molecular formula C18H20N2O3S and molecular weight 344.43 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, N-(2-oxo-2-(pyrrolidin-1-yl)ethyl)-N-phenylbenzenesulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 344.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C18H20N2O3S |
| Molecular Weight | 344.43 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
- N-(2-Cyano-3-methylbutan-2-yl)-2-((4-methyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 796084-21-4)
- N-(3-(2-Oxopyrrolidin-1-yl)phenyl)-2-phenylethane-1-sulfonamide (CAS 942013-01-6)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((1-(m-tolyl)-1H-tetrazol-5-yl)thio)acetamide (CAS 750605-92-6)
- N-(4-(4-fluorophenyl)thiazol-2-yl)-2-(phenylthio)acetamide (CAS 338957-71-4)
- 1-(2,4-Dichlorophenyl)pentan-1-one (CAS 61023-66-3)
- 4-Bromo-1-(pent-4-en-1-yl)-1H-pyrazole (CAS 1339728-85-6)
- Dimethyl 2,2-(1,4-phenylene)diacetate (CAS 36076-25-2)
- 3-Cyclopropoxy-6-ethyl-2-(methylthio)pyridine (CAS 1243375-87-2)
- (R)-3-Hydroxypyrrolidin-2-one (CAS 77510-50-0)
- Moxonidine impurity 8 (CAS CATO-C4X-27818)
- methyl 4-methyl-5-phenylisoxazole-3-carboxylate (CAS 668971-11-7)
- Ibrutinib Impurity 148 (CAS CATO-C4X-1064148)
- N-((1,4-dimethylpiperazin-2-yl)methyl)thietan-3-amine (CAS 1878303-95-7)
- ([13C6]Leu14)-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802078-39-2)
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