1-Methyl-1H-imidazole-2-sulfonyl chloride 1-Methylimidazole-2-sulfonyl chloride 2-Chlorosulfonyl-1-methylimidazole 55694-81-0 CAS 55694-81-0
| CAS No. | 55694-81-0 |
| Molecular Formula | C4H9ClN2O2S |
| Molecular Weight | 184.64 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 1-Methyl-1H-imidazole-2-sulfonyl chloride 1-Methylimidazole-2-sulfonyl chloride 2-Chlorosulfonyl-1-methylimidazole 55694-81-0.
CATO supplies 1-Methyl-1H-imidazole-2-sulfonyl chloride 1-Methylimidazole-2-sulfonyl chloride 2-Chlorosulfonyl-1-methylimidazole 55694-81-0 (CAS 55694-81-0), a certified reference material (molecular formula C4H9ClN2O2S, MW 184.64 g/mol) for analytical method development and quality control.
The molecular framework of 1-Methyl-1H-imidazole-2-sulfonyl chloride 1-Methylimidazole-2-sulfonyl chloride 2-Chlorosulfonyl-1-methylimidazole 55694-81-0 (C4H9ClN2O2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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-1H-imidazole-2-sulfonyl chloride 1-Methylimidazole-2-sulfonyl chloride 2-Chlorosulfonyl-1-methylimidazole 55694-81-0 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 | C4H9ClN2O2S |
| Molecular Weight | 184.64 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 DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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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