4-(4-Chloro-3-ethyl-3-methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide CAS 65116-25-8
| CAS No. | 65116-25-8 |
| Molecular Formula | C13H15ClN2O4S |
| Molecular Weight | 330.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(4-Chloro-3-ethyl-3-methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(4-Chloro-3-ethyl-3-methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide (CAS 65116-25-8), molecular formula C13H15ClN2O4S and molecular weight 330.79 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(4-Chloro-3-ethyl-3-methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide (C13H15ClN2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 330.79 g/mol, it falls into the moderately-high-molecular-weight range. 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.
As a certified reference material (CRM), 4-(4-Chloro-3-ethyl-3-methyl-2,5-dioxopyrrolidin-1-yl)benzenesulfonamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H15ClN2O4S |
| Molecular Weight | 330.79 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; 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.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
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- (5E)-5-(3-Chloro-4-hydroxybenzylidene)-2-mercapto-3-phenyl-3,5-dihydro-4H-imidazol-4-one 497835-71-9 (CAS 497835-71-9)
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Recommended Standards
- 5-Methyl-2-(pyridin-2-yl)thiazol-4-yl 4-chlorobenzoate (CAS 338399-13-6)
- 5-Methyl-2-(pyridin-3-yl)-1,3-thiazol-4-yl 4-chlorobenzoate (CAS 338399-00-1)
- 3'-(4-Chlorophenyl)spiro[indoline-3,2'-thiazolidine]-2,4'-dione (CAS 79962-57-5)
- 5-Methyl-2-(pyridin-4-yl)-1,3-thiazol-4-yl 4-chlorobenzoate (CAS 338398-91-7)
- 1-(3-Ethoxyphenyl)propan-2-ol (CAS 959029-72-2)
- n-(Piperidin-4-yl)-N-propylisobutyramide (CAS 1576150-32-7)
- 1-Bromo-4-fluoro-2-(trifluoromethoxy)benzene (CAS 1242252-07-8)
- 2-methoxy-4-methyl-1,3-thiazole-5-sulfonamide (CAS 1909306-52-0)
- 2-Propenoic acid, 2-methyl-, 3-(dimethylamino)propyl ester, homopolymer (CAS 53466-45-8)
- 5-(2-Iodophenyl)oxazol-2-amine (CAS 2092677-75-1)
- 1-(5-Bromo-4-methyl-2-pyridinyl)azepane (CAS 1219967-47-1)
- (±)-18-Methoxycoronaridine (CAS 188125-42-0)
- ethyl 1-ethyl-5-hydroxy-1H-pyrazole-4-carboxylate (CAS 1546671-56-0)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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