4-Methoxy-3-(pyrrolidin-1-ylcarbonyl)-benzenesulfonyl chloride CAS 952946-98-4
| CAS No. | 952946-98-4 |
| Molecular Formula | C12H14ClNO4S |
| Molecular Weight | 303.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
4-Methoxy-3-(pyrrolidin-1-ylcarbonyl)-benzenesulfonyl chloride (CAS 952946-98-4) is a high-purity analytical reference standard with the molecular formula C12H14ClNO4S and a molecular weight of 303.76 g/mol.
Based on its molecular formula C12H14ClNO4S, 4-Methoxy-3-(pyrrolidin-1-ylcarbonyl)-benzenesulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, 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 303.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 4-Methoxy-3-(pyrrolidin-1-ylcarbonyl)-benzenesulfonyl chloride 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 | C12H14ClNO4S |
| Molecular Weight | 303.76 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-Chloro-3-(piperidine-1-sulfonyl)benzoic acid (CAS 59210-74-1)
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- 9-(Azetidin-3-yl)-9H-purin-6-amine (CAS 1706435-57-5)
- 2,2-Diethoxy-N,N-diethylacetamide (CAS 16695-60-6)
- 5,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 91570-21-7)
- 4-(2-Fluorophenyl)-4-(4-fluorophenyl)butanoic acid (CAS 132712-53-9)
- N-cyclopropyl-2-hydrazino-2-oxo-acetamide (CAS 855991-46-7)
- 6-Methylpyridine-2-carbohydrazonamide (CAS 18895-94-8)
- 3-(2-Chloroacetyl)-1-ethylurea (CAS 4791-24-6)
- Donepezil Impurity 39 (CAS 923571-15-7)
- 1-(2-(6-Chloro-5-methylpyridin-3-yl)piperidin-1-yl)ethanone (CAS 1352537-58-6)
- Semaglutide Impurity 131 (CAS 2618647-80-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com