1-methyl-5-oxopyrrolidine-3-sulfonyl chloride CAS 1909326-40-4
| CAS No. | 1909326-40-4 |
| Molecular Formula | C5H8ClNO3S |
| Molecular Weight | 197.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1-methyl-5-oxopyrrolidine-3-sulfonyl chloride (CAS 1909326-40-4), a certified reference material (molecular formula C5H8ClNO3S, MW 197.64 g/mol) for analytical method development and quality control.
1-methyl-5-oxopyrrolidine-3-sulfonyl chloride (C5H8ClNO3S) contains an amide group, a sulfone group, a carboxylic acid 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.
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.
CATO manufactures 1-methyl-5-oxopyrrolidine-3-sulfonyl 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 | C5H8ClNO3S |
| Molecular Weight | 197.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related methyl Standards
- 1-Butyl-5-oxopyrrolidine-3-carbohydrazide (CAS 1437312-24-7)
- 1-Benzyl-5-oxopyrrolidine-3-carbonitrile (CAS 120656-57-7)
- 2-Methyl-4-oxopyrrolidine-1,3-dicarboxylic acid (CAS 875255-92-8)
- 1-Butyl-5-oxopyrrolidine-3-carboxylic acid (CAS 43094-86-6)
- 1-ethyl-5-oxopyrrolidine-3-sulfonyl chloride (CAS 1909312-77-1)
- 1-Methyl-2-oxopyrrolidine-3-sulfonamide (CAS 1599131-44-8)
- 1-Benzyl-5-oxopyrrolidine-3-carboxamide (CAS 116041-19-1)
- 1-Benzyl-5-oxopyrrolidine-2-carboxamide 1207AF 87341-53-5 C12H14N2O2 (CAS 87341-53-5)
Recommended Standards
- 5-chlorothieno[3,2-b]pyridine-2-carbaldehyde (CAS 1909312-98-6)
- 1,3-Benzothiazole-6-carbonyl chloride (CAS 55439-73-1)
- 2,2-Dimethyl-4-oxoazetidine-1-sulfonyl chloride (CAS 17174-96-8)
- 1-Chloro-N,N-diisopropyl-1-methoxyphosphanamine (CAS 86030-43-5)
- Adenanthin A (CAS 111917-59-0)
- 1-Amino-6-(ethylthio)-3-neopentyl-1,3,5-triazine-2,4(1H,3H)-dione (CAS 78168-93-1)
- 2-[5-cyclopropyl-3-(trifluoromethyl)-1h-pyrazol-1-yl]acetic acid (CAS 957487-30-8)
- Ethyl 3-bromo-6-(difluoromethyl)-2-pyridinecarboxylate (CAS 1806781-89-4)
- 3-(4-Methyl-1H-indol-1-yl)propan-1-amine (CAS 1094754-77-4)
- 2-Chloro-6-fluoroisonicotinonitrile (CAS 1807272-13-4)
- N-(5-(Benzo[d][1,3]dioxol-5-yl)-1,3,4-oxadiazol-2-yl)pivalamide (CAS 922018-26-6)
- 2-(4-(tert-Butyl)-2-chlorophenoxy)acetohydrazide (CAS 1547431-25-3)
- 4-Methylbenzenesulfinic acid hydrate (CAS 1588441-34-2)
- Insulin Degludec Impurity 12 (CAS CATO-C4X-215712)
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